| Ruler | Born | Reign | Death | Ruling part | Consort | Notes | 
|---|
| Frederick I the Warlike (Friedrich der Streitbare)
 |  | 11 April 1370 | 6 January 1423 – 4 January 1428 | 4 January 1428 | Duchy of Saxony and Electorate of Saxony | Catherine of Brunswick-Lüneburg 7 February 1402
 seven children
 | After the Wittenberg line of the Ascanians became extinct, the Electorate was given to Frederick, Margrave of Meissen and Landgrave of Thuringia, of the House of Wettin. | 
| Frederick II the Gentle (Friedrich der Sanftmütige)
 |  | 22 April 1412 | 4 January 1428 – 7 September 1464 | 7 September 1464 | Duchy of Saxony and Electorate of Saxony | Margaret of Austria 3 June 1431
 Leipzig
 eight children
 | Son of Frederick I. Ruled jointly in Saxony with his brothers, but was the sole holder of the Electorate. Father of Ernest and Albert, founders of the Ernestine and Albertine Saxon lines. | 
| Ernest I (Ernst)
 |  | 24 March 1441 | 7 September 1464 – 26 August 1486 | 26 August 1486 | Ernestine Electorate of Saxony
 | Elisabeth of Bavaria-Munich 25 November 1460
 Leipzig
 seven children
 | Son of Frederick II. He was the founder and progenitor of the Ernestine line of Saxon princes. | 
| Albert III the Bold |  | 27 January 1443 | 1464–1500 | 12 September 1500 | Albertine Duchy of Saxony
 | Sidonie of Poděbrady 11 November 1464
 Cheb
 nine children
 | Son of Frederick II. He was the founder and progenitor of the Albertine line of Saxon princes. | 
| Frederick III the Wise (Friedrich der Weise)
 |  | 17 January 1463 | 26 August 1486 – 5 May 1525 | 5 May 1525 | Ernestine Electorate of Saxony
 | Unmarried | Son of Ernest. Protector of Martin Luther, but a lifelong Catholic. Left no male descendants. Ruled jointly with his brother John, who succeeded him. | 
| George I the Bearded |  | 27 August 1471 | 1500–1539 | 17 April 1539 | Albertine Duchy of Saxony
 | Barbara of Poland 21 November 1496
 Dresden
 ten children
 | Proponent of Catholic Reform and a staunch opponent of Martin Luther. Left no surviving male descendants. He was succeeded by his brother Henry. | 
| John I the Steadfast (Johann der Beständige)
 |  | 30 June 1468 | 5 May 1525 – 16 August 1532 | 16 August 1532 | Ernestine Electorate of Saxony
 | Sophie of Mecklenburg 1 March 1500
 Torgau
 one child
 
 Margaret of Anhalt-Köthen
 13 November 1513
 Torgau
 four children
 | Co-regent of his brother Frederick III (26 August 1486 – 5 May 1525), with his own residence at Weimar since 1513. Established Lutheranism in his territories in 1527. | 
| John Frederick I the Magnanimous (Johann Friedrich I der Großmütige)
 |  | 30 June 1503 | 16 August 1532 – 19 May 1547 | 3 March 1554 | Ernestine Electorate of Saxony
 | Sibylle of Cleves 9 February 1527
 Torgau
 four children
 | Lost his Electoral dignity and territory to his cousin Maurice after being defeated by the Emperor in the Schmalkaldic War. He was left with some territories as the Duchy of Saxony. After his death the Duchy of Saxony was divided between his three sons. | 
| 19 May 1547 – 1554 | Ernestine Duchy of Saxony
 | 
| John Ernest I |  | 10 May 1521 | 16 August 1532 – 8 February 1553 | 8 February 1553 | Ernestine Saxe-Coburg
 | Catherine of Brunswick-Grubenhagen 12 February 1542
 Torgau
 no children
 | Until 1542, John Ernest was co-regent of his brother, Elector John Frederick I. When John Frederick decided to rule alone, he created the Duchy of Saxe-Coburg for his brother. After his death without descendants, the land reverted to John Frederick. | 
| Henry IV the Pious |  | 16 March 1473 | 1539–1541 | 18 August 1541 | Albertine Duchy of Saxony
 | Catherine of Mecklenburg 69 January 1541
 Marburg
 nine children
 | Succeeded his brother George I. He established Lutheranism in Albertine Saxony. | 
| Maurice I (Moritz)
 |  | 21 March 1521 | 1541–1547 | 9 July 1553 | Albertine Duchy of Saxony
 | Agnes of Hesse 9 January 1541
 Marburg
 two children
 | Second cousin of John Frederick, grandson of Albert. Though a Lutheran, allied with Emperor Charles V against the Schmalkaldic League. Gained the Electorate for the Albertine line in 1547 after Charles V's victory at the Battle of Mühlberg. Left no male descendants. He was succeeded by his brother Augustus. | 
| 4 June 1547 – 9 July 1553 | Albertine Electorate of Saxony
 | 
| Following their displacement by the Albertines, the Ernestine branch of the Wettins continued to rule in southern Thuringia as "Dukes of Saxony", but their lands eventually split up into many different tiny Ernestine duchies. | 
| Augustus I (August)
 |  | 31 July 1526 | 9 July 1553 – 11 February 1586 | 11 February 1586 | Albertine Electorate of Saxony
 | Anna of Denmark 7 October 1548
 Torgau
 fifteen children
 
 Agnes Hedwig of Anhalt
 3 January 1586
 Dessau
 no children
 | Brother of Maurice. Recognized as Elector by the ousted John Frederick I in 1554. From 1573 he was also regent for Frederick William, in the Ernestine duchy of Saxe-Weimar. | 
| John Frederick II |  | 8 January 1529 | 1554–1565 | 19 May 1595 | Ernestine Saxe-Coburg -Eisenach
 | Agnes of Hesse 26 May 1555
 Weimar
 no children
 
 Elisabeth of the Palatinate-Simmern-Sponheim
 12 June 1558
 Weimar
 four children
 | Received Saxe-Weimar. In 1565 united his domains with those of his younger brother in Gotha. In 1566 abdicated in favor of his brother John William, who reunited the duchy. | 
| 1565–1566 | Ernestine Saxe-Coburg -Eisenach and Saxe-Gotha
 | 
| John Frederick III the Younger |  | 16 January 1538 | 1554–1565 | 21 October 1565 | Ernestine Saxe-Gotha
 | Unmarried | Received Saxe-Gotha. However he left its administration to his elder brothers. After his death, his domains were annexed by his elder brother. | 
| John William I |  | 11 March 1530 | 1554–1566 | 2 March 1573 | Ernestine Saxe-Weimar
 | Dorothea Susanne of the Palatinate-Simmern 15 June 1560
 Heidelberg
 five children
 | Received Saxe-Weimar. In 1565 united his domains with those of his younger brother in Gotha. Reunited Saxony in 1566, after the abdication of his older brother. In 1572, the Division of Erfurt divided Saxony once again, between John William and his nephews, sons of John Frederick II. He received once more Saxe-Weimar. | 
| 1566–1572 | Ernestine Duchy of Saxony
 | 
| 1572–1573 | Ernestine Saxe-Weimar
 | 
| John Casimir |  | 12 June 1564 | 1572–1596 | 16 July 1633 | Ernestine Saxe-Coburg -Eisenach
 | Anna of Saxony 16 January 1586
 Dresden
 no children
 
 Margaret of Brunswick-Lüneburg
 16 September 1599
 Coburg
 no children
 | Sons of John Frederick II, ruled jointly. In 1596 divided the land. John Casimir received Saxe-Coburg and John Ernest received Saxe-Eisenach. In 1633 John Casimir died without descendants and John Ernest reunited again Saxe-Coburg-Eisenach. However, as he also didn't have heirs, the duchies were divided between its neighbours Saxe-Altenburg and Saxe-Weimar. | 
| 1596–1633 | Ernestine Saxe-Coburg
 | 
| John Ernest I |  | 9 July 1566 | 1572–1596 | 23 October 1638 | Ernestine Saxe-Coburg -Eisenach
 | Elisabeth of Mansfeld-Hinterort 23 November 1591
 Wiener Neustadt
 one child
 
 Christine of Hesse-Kassel
 14 May 1598
 Rotenburg an der Fulda
 no children
 | 
| 1596–1633 | Ernestine Saxe-Eisenach
 | 
| 1633–1638 | Ernestine Saxe-Coburg -Eisenach
 | 
| Saxe-Coburg-Eisenach divided between its neighbours Saxe-Altenburg and Saxe-Weimar | 
| Regency of Augustus I, Elector of Saxony (1573-1586) | After his death, his brother took the land and in the next year divided it with his nephews (sons of Frederick William). | 
| Frederick William I |  | 25 April 1562 | 1573–1602 | 7 July 1602 | Ernestine Saxe-Weimar
 | Sophie of Württemberg 5 May 1583
 Weimar
 six children
 
 Anna Maria of the Palatinate-Neuburg
 9 September 1591
 Neuburg an der Donau
 six children
 | 
| Christian I (Christian I)
 |  | 29 October 1560 | 11 February 1586 – 25 September 1591 | 25 September 1591 | Albertine Electorate of Saxony
 | Sophie of Brandenburg 25 April 1582
 Dresden
 seven children
 |  | 
| Regency of Sophie of Brandenburg (1591-1601) |  | 
| Christian II (Christian II)
 |  | 23 September 1583 | 25 September 1591 – 23 June 1611 | 23 June 1611 | Albertine Electorate of Saxony
 | Hedwig of Denmark 12 September 1602
 Dresden
 no children
 | 
| John II |  | 22 May 1570 | 1602–1605 | 18 July 1605 | Ernestine Saxe-Weimar
 | Dorothea Maria of Anhalt 7 January 1593
 Altenburg
 twelve children
 | Divided Saxe-Weimar with his nephews in 1603, retaining a smaller Saxe-Weimar (sometimes called Saxe-Weimar-Jena). | 
| John Philip |  | 25 January 1597 | 1603–1639 | 1 April 1639 | Ernestine Saxe-Altenburg
 | Elisabeth of Brunswick-Wolfenbüttel 25 October 1618
 Altenburg
 one child
 | Received and ruled jointly the newly created Saxe-Altenburg, after the partition of 1603. None of them had male descendants. | 
| Frederick |  | 12 February 1599 | 1603–1625 | 24 October 1625 | Ernestine Saxe-Altenburg
 | Unmarried | 
| John William |  | 13 April 1600 | 1603–1632 | 2 December 1632 | Ernestine Saxe-Altenburg
 | Unmarried | 
| John Ernest I |  | 21 February 1594 | 1605–1626 | 6 December 1626 | Ernestine Saxe-Weimar
 | Unmarried | Sons of John IV, ruled jointly. In 1640 divided the land. William kept Saxe-Weimar. In 1644 William reunited his own domains with Albert's. After William's death his domains were divided by his four sons. On the other hand, Ernest inherited Saxe-Gotha and reunited it with his wife's (as heiress of Saxe-Altenburg). | 
| William I the Great |  | 11 April 1598 | 1626–1644 | 17 May 1662 | Ernestine Saxe-Weimar
 | Eleonore Dorothea of Anhalt-Dessau 23 May 1625
 Weimar
 nine children
 | 
| 1644–1662 | Ernestine Saxe-Weimar and Saxe-Eisenach
 | 
| Albert IV |  | 27 July 1599 | 1605–1640 | 20 December 1644 | Ernestine Saxe-Weimar
 | Dorothea of Saxe-Altenburg 24 June 1633
 Weimar
 no children
 | 
| 1640–1644 | Ernestine Saxe (-Weimar) -Eisenach
 | 
| Ernest I the Pious |  | 25 December 1601 | 1605–1640 | 26 March 1675 | Ernestine Saxe-Weimar
 | Elisabeth Sophie of Saxe-Altenburg 24 October 1636
 Altenburg
 eighteen children
 | 
| 1640–1672 | Ernestine Saxe (-Weimar) -Gotha
 | 
| 1672–1675 | Ernestine Saxe-Gotha-Altenburg
 | 
| John George I (Johann Georg I)
 |  | 5 March 1585 | 23 June 1611 – 8 October 1656 | 8 October 1656 | Albertine Electorate of Saxony
 | Sibylle Elisabeth of Württemberg 16 September 1604
 Dresden
 one child
 
 Magdalene Sibylle of Prussia
 19 July 1607
 Torgau
 ten children
 | Brother of Christian II, ruled during the Thirty Years' War, during which he was at times allied with the Emperor and at times with the King of Sweden. | 
| Frederick William II |  | 12 February 1602 | 1639–1669 | 22 April 1669 | Ernestine Saxe-Altenburg
 | Sophie Elisabeth of Brandenburg 18 September 1638
 Altenburg
 no children
 
 Magdalene Sibylle of Saxony
 11 October 1652
 Dresden
 three children
 | Brother of John Philip, Frederick and John William. Succeeded his childless brothers. Received part of Saxe-Weimar-Eiesnach in 1638. | 
| John George II (Johann Georg II)
 |  | 31 May 1613 | 8 October 1656 – 22 August 1680 | 22 August 1680 | Albertine Electorate of Saxony
 | Magdalene Sibylle of Brandenburg-Bayreuth 13 November 1638
 Dresden
 three children
 | Elector, he also served as regent in Saxe-Altenburg for Frederick William III. The minor duke never reached adulthood. | 
| Augustus I |  | 13 August 1614 | 1656–1680 | 4 June 1680 | Albertine Saxe-Weissenfels
 | Anna Maria of Mecklenburg-Schwerin 23 November 1647
 Schwerin
 twelve children
 
 Johanna Walpurgis of Leiningen-Westerburg
 29 January 1672
 Halle
 three children
 | Son of Elector John George I. Inherited Saxe-Weissenfels. After his death, Weissenfels was divided. | 
| Christian I |  | 27 October 1615 | 1656–1691 | 18 October 1691 | Albertine Saxe-Merseburg
 | Christiana of Schleswig-Holstein-Sonderburg-Glücksburg 19 November 1650
 Dresden
 eleven children
 | Son of Elector John George I. Inherited Saxe-Merseburg. | 
| Maurice I |  | 28 March 1619 | 1662–1681 | 4 December 1681 | Albertine Saxe-Zeitz
 | Sophie Hedwig of Schleswig-Holstein-Sonderburg-Glücksburg 19 November 1650
 Dresden
 two children
 
 Dorothea Maria of Saxe-Weimar
 3 July 1656
 Weimar
 ten children
 
 Sophie Elisabeth of Schleswig-Holstein-Sonderburg-Wiesenburg
 14 June 1676
 Wiesenburg
 no children
 | Son of Elector John George I. Inherited Saxe-Zeitz. | 
| Bernard II |  | 14 October 1638 | 1662–1678 | 3 May 1678 | Ernestine Saxe-Jena
 | Marie Charlotte de la Trémoille 10 June 1662
 Paris
 five children
 | Son of William I. Received Saxe-Jena. | 
| John Ernest II |  | 11 September 1627 | 1662–1683 | 15 May 1683 | Ernestine Saxe-Weimar
 | Christine Elisabeth of Schleswig-Holstein-Sonderburg 14 August 1656
 Weimar
 five children
 | Son of William I. Received the remaining Saxe-Weimar. He also served as regent for his nephew, John William of Saxe-Jena. | 
| Adolf William |  | 15 May 1632 | 1662–1668 | 21 November 1668 | Ernestine Saxe-Eisenach
 | Marie Elisabeth of Brunswick-Wolfenbüttel 18 January 1663
 Wolfenbüttel
 five children
 | Son of William I. Received Saxe-Eisenach. | 
| Regency of John George I, Duke of Saxe-Marksuhl (1668-1671) | Died as a minor. His uncle, as regent, inherited his domain. | 
| William August |  | 30 November 1668 | 1668–1671 | 23 February 1671 | Ernestine Saxe-Eisenach
 | Unmarried | 
| John George I |  | 11 April 1598 | 1662–1671 | 17 May 1662 | Ernestine Saxe-Marksuhl
 | Johannetta of Sayn-Wittgenstein 29 May 1661
 Wallau
 nine children
 | Son of William I. Received Saxe-Marksuhl. He also served as regent for his nephew William August in Saxe-Eisenach, but after his nephew's death in 1671, he inherited it himself, merging Marksuhl in Eisenach. From 1683 he also became regent for another nephew, John William III, in Saxe-Jena. | 
| 1671–1686 | Ernestine Saxe-Eisenach
 | 
| Saxe-Marksuhl merged in Saxe-Eisenach | 
| Regency of John George II, Elector of Saxony (1669-1672) | Son of Frederick William II. Died as a minor. His lands were divided between Saxe-Gotha and Saxe-Weimar. | 
| Frederick William III |  | 12 July 1657 | 1669–1672 | 14 April 1672 | Ernestine Saxe-Altenburg
 | Unmarried | 
| Saxe-Altenburg merged in Saxe-Gotha to form Saxe-Gotha-Altenburg | 
| Frederick I |  | 15 July 1646 | 1675–1691 | 2 August 1691 | Ernestine Saxe-Gotha-Altenburg
 | Magdalena Sibylle of Saxe-Weissenfels 14 November 1669
 Halle
 eight children
 
 Christine of Baden-Durlach
 14 August 1681
 Ansbach
 no children
 | Son of Ernest I. Received Saxe-Gotha-Altenburg. | 
| Albert V |  | 24 May 1648 | 1675–1699 | 6 August 1699 | Ernestine Saxe-Coburg
 | Marie Elisabeth of Brunswick-Wolfenbüttel 18 July 1676
 Gotha
 one child
 
 Susanne Elisabeth Kempinsky
 24 May 1688
 Coburg
 (morganatic)
 no children
 | Son of Ernest I. Received Saxe-Coburg. Left no male descendants. His lands were annexed by Saafeld. | 
| Saxe-Coburg merged in Saxe-Saalfeld to form Saxe-Coburg-Saalfeld | 
| Bernard I |  | 10 September 1649 | 1675–1706 | 27 April 1706 | Ernestine Saxe-Meiningen
 | Marie Hedwig of Hesse-Darmstadt 20 November 1671
 Gotha
 seven children
 
 Elisabeth Eleonore of Brunswick-Wolfenbüttel
 25 January 1681
 Schöningen
 five children
 | Son of Ernest I. Received Saxe-Meiningen. He also served as regent, together with his brother Henry, for their nephew, Frederick II, in Saxe-Gotha-Altenburg. | 
| Henry |  | 19 November 1650 | 1675–1710 | 13 May 1710 | Ernestine Saxe-Römhild
 | Marie Elisabeth of Hesse-Darmstadt 1 March 1676
 Darmstadt
 no children
 | Son of Ernest I. Received Saxe-Römhild. Left no descendants and his lands were annexed to Saxe-Coburg-Saalfeld. He also served as regent, together with his brother Henry, for their nephew, Frederick II. | 
| Saxe-Römhild was annexed by Saxe-Coburg-Saalfeld | 
| Christian |  | 6 January 1653 | 1675–1707 | 28 April 1707 | Ernestine Saxe-Eisenberg
 | Christiane of Saxe-Merseburg 13 February 1677
 Merseburg
 one child
 
 Sophie Marie of Hesse-Darmstadt
 9 February 1681
 Darmstadt
 no children
 | Son of Ernest I. Received Saxe-Eisenberg. Left no male descendants and his lands were annexed to Saxe-Hildburghausen. | 
| Saxe-Eisenberg was annexed by Saxe-Hildburghausen | 
| Ernest I |  | 12 June 1655 | 1675–1715 | 17 October 1715 | Ernestine Saxe-Hildburghausen
 | Sophie of Waldeck 30 November 1680
 Arolsen
 eighteen children
 | Son of Ernest I of Saxe-Gotha. Received Saxe-Hildburghausen. | 
| John Ernest |  | 22 August 1658 | 1675–1699 | 17 February 1729 | Ernestine Saxe-Saalfeld
 | Sophie Hedwig of Saxe-Merseburg 18 February 1680
 Merseburg
 five children
 
 Charlotte Johanna of Waldeck-Wildungen
 2 December 1690
 Maastricht
 eight children
 | Son of Ernest I. Received Saxe-Saafeld. In 1699 reunified it with Saxe-Coburg, forming Saxe-Coburg-Saalfeld. | 
| 1699–1729 | Ernestine Saxe-Coburg-Saalfeld
 | 
| Regencies of John Ernest II, Duke of Saxe-Weimar (1678-83), John George I, Duke of Saxe-Eisenach (1683-86) and William Ernest, Duke of Saxe-Weimar (1686-90) | Son of Bernard II. Died as a minor. | 
| John William |  | 28 March 1675 | 1678–1690 | 4 November 1690 | Ernestine Saxe-Jena
 | Unmarried | 
| Saxe-Coburg-Eisenach divided between its neighbours Saxe-Eisenach and Saxe-Weimar | 
| John George III (Johann Georg III)
 |  | 20 June 1647 | 22 August 1680 – 12 September 1691 | 12 September 1691 | Albertine Electorate of Saxony
 | Anna Sophie of Denmark 9 October 1666
 Copenhagen
 two children
 |  | 
| John Adolph I |  | 2 November 1649 | 1680–1697 | 24 May 1697 | Albertine Saxe-Weissenfels-Querfurt
 | Johanna Magdalena of Saxe-Altenburg 25 October 1671
 Altenburg
 eleven children
 
 Christiane Wilhelmine of Bünau
 3 February 1692
 Querfurt
 (morganatic)
 eleven children
 | Inherited the remaining Saxe-Weissenfels. | 
| Henry |  | 29 September 1657 | 1680–1728 | 16 February 1728 | Albertine Saxe-Weissenfels-Barby
 | Elisabeth Albertine of Anhalt-Dessau 30 March 1686
 Dessau
 seven children
 | Inherited Saxe-Weissenfels-Barby. | 
| Maurice William |  | 12 March 1664 | 1681–1718 | 15 November 1718 | Albertine Saxe-Zeitz
 | Marie Amalie of Brandenburg 25 June 1689
 Potsdam
 five children
 | Left no descendants. After his death Saxe-Zeitz merged in the Electorate. | 
| Saxe-Zeitz merged in the Electorate of Saxony | 
| William Ernest I |  | 19 October 1662 | 1683–1728 | 26 August 1728 | Ernestine Saxe-Weimar
 | Charlotte Marie of Saxe-Jena 2 November 1683
 Eisenach
 no children
 | Ruled jointly. John Ernest was just a nominal ruler; William Ernest had full government. William Ernest also served as regent for his cousin, John William, in Saxe-Jena. | 
| John Ernest III |  | 22 June 1664 | 1683–1707 | 10 May 1707 | Ernestine Saxe-Weimar
 | Sophie Auguste of Anhalt-Zerbst 11 October 1685
 Zerbst
 five children
 
 Charlotte of Hesse-Homburg
 4 November 1694
 Kassel
 four children
 | 
| Philip |  | 26 October 1657 | 1684–1690 | 1 July 1690 | Albertine Saxe-Merseburg-Lauchstädt
 | Eleonore Sophie of Saxe-Weimar 9 July 1684
 Weimar
 two children
 
 Louise Elisabeth of Württemberg-Oels
 17 August 1688
 Bernstadt
 one child
 | Son of Christian. Received from his father the town of Lauchstädt, and ruled it in his father's lifetime. After his death his land returned to is father. | 
| John George II |  | 24 July 1665 | 1686–1698 | 10 November 1698 | Ernestine Saxe-Eisenach
 | Sophie Charlotte of Württemberg 20 September 1688
 Kirchheim unter Teck
 no children
 | Left no descendants. He was succeeded by his brother. | 
| John George IV (Johann Georg IV)
 |  | 18 October 1668 | 12 September 1691 – 27 April 1694 | 27 April 1694 | Albertine Electorate of Saxony
 | Eleonore Erdmuthe of Saxe-Eisenach 17 April 1692
 Leipzig
 no children
 |  | 
| Christian II |  | 19 November 1653 | 1691–1694 | 20 October 1694 | Albertine Saxe-Merseburg
 | Erdmuthe Dorothea of Saxe-Zeitz 14 October 1679
 Moritzburg
 seven children
 |  | 
| Augustus |  | 15 February 1655 | 1691–1715 | 27 March 1715 | Albertine Saxe-Merseburg-Zörbig
 | Hedwig of Mecklenburg-Güstrow 1 December 1686
 Güstrow
 eight children
 | Son of Christian. Received from his brother the town of Zörbig. Left no male descendants. His lands returned to Saxe-Merseburg. | 
| Saxe-Merseburg-Zörbig merged in Saxe-Merseburg | 
| Regencies of Bernhard I, Duke of Saxe-Meiningen and Henry, Duke of Saxe-Römhild (1691-1693) |  | 
| Frederick II |  | 28 July 1676 | 1691–1732 | 23 March 1732 | Ernestine Saxe-Gotha-Altenburg
 | Magdalena Augusta of Anhalt-Zerbst 7 June 1696
 Gotha
 nineteen children
 | 
| Frederick Augustus I the Strong (Friedrich August I)
 |  | 12 May 1670 | 27 April 1694 – 1 February 1733 | 1 February 1733 | Albertine Electorate of Saxony
 | Christiane Eberhardine of Brandenburg-Bayreuth 20 January 1693
 Bayreuth
 one child
 | Brother of John George IV. Converted to Catholicism 1697 in order to compete for the crown of Poland. Took the Polish crown 1697, opposed by Stanisław Leszczyński, in 1704, forced to renounce the throne 1706, returned as monarch 1709 until his death. He also served as regent on behalf of Dukes Christian Maurice, and Maurice Wilhelm in Saxe-Merseburg. | 
| Regencies of Erdmuthe Dorothea of Saxe-Zeitz and Frederick Augustus I, Elector of Saxony (1694-1712) | Both brothers left no descendants. Maurice William was succeeded by his uncle, Henry. | 
| Christian III Maurice |  | 7 November 1680 | 1694 | 14 November 1694 | Albertine Saxe-Merseburg
 | Unmarried | 
| Maurice William |  | 5 February 1688 | 1694–1731 | 21 April 1731 | Albertine Saxe-Merseburg
 | Henriette Charlotte of Nassau-Idstein 4 November 1711
 Istein
 one child
 | 
 
| Henry |  | 2 September 1661 | 1694–1731 | 28 July 1738 | Albertine Saxe-Merseburg-Spremberg
 | Elisabeth of Mecklenburg-Güstrow 29 March 1692
 Güstrow
 three children
 | Son of Christian. Received from his brother the town of Spremberg. In 1731 succeeded in Saxe-Merseburg, reuniting its original lands with those he unexpectedly inherited. Left no descendants and Saxe-Merseburg merged in the Electorate of Saxony. | 
| 1731–1738 | Albertine Saxe-Merseburg
 | 
| Saxe-Merseburg-Spremberg merged in Saxe-Merseburg | 
| Saxe-Merseburg merged in the Electorate of Saxony | 
| John George |  | 13 July 1677 | 1697–1712 | 16 March 1712 | Albertine Saxe-Weissenfels-Querfurt
 | Fredericka Elisabeth of Saxe-Eisenach 7 January 1698
 Jena
 seven children
 | Left no male descendants. He was succeeded by his brother Christian. | 
| John William III |  | 17 October 1666 | 1698–1729 | 14 January 1729 | Ernestine Saxe-Eisenach
 | Amalie of Nassau-Dietz 28 November 1690
 Oranjewoud
 two children
 
 Christine Juliane of Baden-Durlach
 27 February 1697
 Wolfenbüttel
 seven children
 
 Magdalene Sibylle of Saxe-Weissenfels
 28 July 1708
 Weissenfels
 three children
 
 Marie Christine Felizitas of Leiningen-Dagsburg-Falkenburg-Heidesheim
 29 May 1727
 Hanau
 no children
 |  | 
| Frederick Henry |  | 21 July 1668 | 1699–1713 | 18 December 1713 | Albertine Saxe-Zeitz-Pegau-Neustadt
 | Sophie Angelika of Württemberg-Oels 23 April 1699
 Oleśnica
 no children
 
 Anna Fredericka Philippine of Schleswig-Holstein-Sonderburg-Wiesenburg
 27 February 1702
 Moritzburg
 two children
 | Son of Maurice. Received from his brother the towns of Pegau and Neustadt. Left no male descendants. His lands returned to Saxe-Zeitz. | 
| Saxe-Zeitz-Pegau-Neustadt merged in Saxe-Zeitz | 
| Ernest Louis I |  | 7 October 1672 | 1706–1724 | 24 November 1724 | Ernestine Saxe-Meiningen
 | Dorothea Marie of Saxe-Gotha-Altenburg 19 September 1704
 Gotha
 five children
 
 Elisabeth Sophie of Brandenburg
 3 June 1714
 Coburg
 no children
 |  | 
| Frederick |  | 20 November 1673 | 1711–1715 | 16 April 1715 | Albertine Saxe-Weissenfels-Dahme
 | Emilie Agnes Reuss of Schleiz 13 February 1711
 Dahme
 no children
 | Son of Augustus. His brother John Adolph gave him in 1711 Saxe-Weissenfels-Dahme. After his death Dahme was reabsorbed by Saxe-Weissenfels-Querfurt. | 
| Saxe-Weissenfels-Dahme merged in Saxe-Weissenfels-Querfurt | 
| Christian |  | 23 February 1682 | 1712–1736 | 28 June 1736 | Albertine Saxe-Weissenfels-Querfurt
 | Louise Christine of Stolberg-Stolberg-Ortenberg 12 May 1712
 Stolberg
 no children
 | Left no male descendants. He was succeeded by his brother John Adolf. | 
| Ernest Frederick I |  | 21 August 1681 | 1715–1724 | 9 March 1724 | Ernestine Saxe-Hildburghausen
 | Sophia Albertine of Erbach-Erbach 4 February 1704
 Erbach im Odenwald
 fourteen children
 |  | 
| Ernest Louis II |  | 8 August 1709 | 1724–1729 | 24 February 1729 | Ernestine Saxe-Meiningen
 | Unmarried | Left no descendants. He was succeeded by his brother. | 
| Regency of Sophia Albertine of Erbach-Erbach (1724-1728) |  | 
| Ernest Frederick II |  | 17 December 1707 | 1724–1745 | 13 August 1745 | Ernestine Saxe-Hildburghausen
 | Caroline of Erbach-Fürstenau 19 June 1726
 Fürstenau
 four children
 | 
| George Albert |  | 19 April 1695 | 1728–1739 | 12 June 1739 | Albertine Saxe-Weissenfels-Barby
 | Auguste Louise of Württemberg-Oels 18 February 1721
 Forst
 no children
 | Left no descendants, and his land merged in Saxe-Weissenfels. | 
| Saxe-Weissenfels-Barby merged in Saxe-Weissenfels | 
| William Henry |  | 10 November 1691 | 1729–1741 | 26 July 1741 | Ernestine Saxe-Eisenach
 | Albertine Juliane of Nassau-Idstein 15 February 1713
 Idstein
 no children
 
 Anna Sophie Charlotte of Brandenburg-Schwedt
 3 June 1723
 Berlin
 no children
 | Left no descendants: Saxe-Eisenach merged with Saxe-Weimar. | 
| Saxe-Eisenach merged in Saxe-Weimar to form Saxe-Weimar-Eisenach | 
| Ernest Augustus I |  | 19 April 1688 | 1728–1741 | 19 January 1748 | Ernestine Saxe-Weimar
 | Eleonore Wilhelmine of Anhalt-Köthen 2 November 1683
 Nienburg
 eight children
 
 Sophie Charlotte of Brandenburg-Bayreuth
 7 April 1734
 Bayreuth
 four children
 | Son of John Ernest III. Reunited under his rule the duchies of Saxe-Weimar and Eisenach. | 
| 1741–1748 | Ernestine Saxe-Weimar-Eisenach
 | 
| Christian Ernest |  | 18 August 1683 | 1729–1745 | 4 September 1745 | Ernestine Saxe-Coburg-Saalfeld
 | Christiane Fredericka of Koss 18 August 1724
 Naitschau
 (morganatic)
 no children
 | Left no descendants. He was succeeded by his brother. | 
| Charles Frederick I |  | 18 July 1712 | 1729–1743 | 28 March 1743 | Ernestine Saxe-Meiningen
 | Unmarried | Brother of Ernest Louis II. Left no descendants. He was succeeded by his uncle. | 
| Frederick III |  | 14 April 1699 | 1732–1772 | 10 March 1772 | Ernestine Saxe-Gotha-Altenburg
 | Luise Dorothea of Saxe-Meiningen 17 September 1729
 Gotha
 eight children
 | He also served as regent for Duke Ernest Augustus II of Saxe-Weimar-Eisenach. | 
| Frederick Augustus II the Fat (Friedrich August II)
 |  | 17 October 1696 | 1 February 1733 – 5 October 1763 | 5 October 1763 | Albertine Electorate of Saxony
 | Maria Josepha of Austria 20 August 1719
 Dresden
 sixteen children
 | Son of Frederick Augustus I. Converted to Catholicism 1712. King of Poland 1734–1763. | 
| John Adolph II |  | 4 September 1685 | 1736–1746 | 16 May 1746 | Albertine Saxe-Weissenfels-Querfurt
 | Johannette Antoinette Juliane of Saxe-Eisenach 9 May 1721
 Eisenach
 one child
 
 Fredericka of Saxe-Gotha-Altenburg
 27 November 1734
 Altenburg
 five children
 | Left no male descendants. After his death the Duchy was reannexed by the Electorate of Saxony. | 
| Saxe-Weissenfels-Querfurt merged in the Electorate of Saxony | 
| Frederick William IV |  | 16 February 1679 | 1743–1746 | 10 March 1746 | Ernestine Saxe-Meiningen
 | Unmarried | Brother of Ernest Louis I. Left no descendants. He was succeeded by his half-brother. | 
| Regency of Caroline of Erbach-Fürstenau (1745-1748) |  | 
| Ernest Frederick III |  | 10 June 1727 | 1745–1780 | 23 September 1780 | Ernestine Saxe-Hildburghausen
 | Louise of Denmark 1 October 1749
 Copenhagen
 one child
 
 Christiane Sophie Charlotte of Brandenburg-Bayreuth
 20 January 1757
 Copenhagen
 one child
 
 Ernestine of Saxe-Weimar
 1 July 1758
 Bayreuth
 three children
 | 
| Francis Josias |  | 25 September 1697 | 1745–1764 | 16 September 1764 | Ernestine Saxe-Coburg-Saalfeld
 | Anna Sophie of Schwarzburg-Rudolstadt 2 January 1723
 Rudolstadt
 eight children
 | Brother of Christian Ernest. He also served as regent for Duke Ernest Augustus II of Saxe-Weimar-Eisenach. | 
| Anthony Ulrich |  | 22 October 1687 | 1746–1763 | 27 January 1763 | Ernestine Saxe-Meiningen
 | Philippine Elisabeth Caesar January 1711
 morganatic
 ten children
 
 Charlotte Amalie of Hesse-Philippsthal
 26 September 1750
 Bad Homburg vor der Höhe
 eight children
 |  | 
| Regency of Francis Josias, Duke of Saxe-Coburg-Saalfeld (1748-1755) |  | 
| Ernest Augustus II |  | 2 June 1737 | 1748–1758 | 28 May 1758 | Ernestine Saxe-Weimar-Eisenach
 | Anna Amalia of Brunswick-Wolfenbüttel 16 March 1756
 Brunswick
 two children
 | 
| Regency of Anna Amalia of Brunswick-Wolfenbüttel (1758-1775) | In 1815 his rank of Duke was elevated to Grand Duke; from 1815 Saxe-Weimar-Eisenach becomes a Grand Duchy. | 
| Charles Augustus |  | 3 September 1757 | 1758–1828 | 14 June 1828 | Ernestine Saxe-Weimar-Eisenach
 | Louise of Hesse-Darmstadt 3 October 1775
 Karlsruhe
 seven children
 | 
| Frederick Christian (Friedrich Christian)
 |  | 5 September 1722 | 5 October 1763 – 17 December 1763 | 17 December 1763 | Albertine Electorate of Saxony
 | Maria Antonia of Bavaria 13 June 1747
 Munich
 (by proxy)
 20 June 1747
 Dresden
 (in person)
 nine children
 | Son of Frederick Augustus II, raised Catholic. | 
| Regency of Charlotte Amalie of Hesse-Philippsthal (1763-1779) | Left no descendants. He was succeeded by his brother. | 
| Charles William |  | 19 November 1754 | 1763–1782 | 21 January 1782 | Ernestine Saxe-Meiningen
 | Louise of Stolberg-Gedern 5 June 1780
 Gedern
 no children
 | 
| Regency of Maria Antonia of Bavaria (1763-1768) | Son of Frederick Christian. His Electorate ceased with the fall of the Holy Roman Empire in 1806, and he became King of Saxony. | 
| Frederick Augustus III the Just (Friedrich August III)
 |  | 23 December 1750 | 17 December 1763 – 20 December 1806 | 5 May 1827 | Albertine Electorate of Saxony
 | Amalie of Zweibrücken-Birkenfeld 17 January 1769
 Mannheim
 (by proxy)
 29 January 1769
 Dresden
 (in person)
 four children
 | 
| In 1806 The Elector of Saxony became King of an independent Kingdom of Saxony. For the Kings that followed the electors, see below the Kingdom of Saxony. To continue the list of the multiple duchies that were contemporaries of this kingdom, follow this table. | 
| Ernest Frederick |  | 8 March 1724 | 1764–1800 | 8 September 1800 | Ernestine Saxe-Coburg-Saalfeld
 | Sophie Antoinette of Brunswick-Wolfenbüttel 23 April 1749
 Wolfenbüttel
 seven children
 |  | 
| Ernest II |  | 30 January 1745 | 1772–1804 | 20 April 1804 | Ernestine Saxe-Gotha-Altenburg
 | Charlotte of Saxe-Meiningen 21 March 1769
 Meiningen
 four children
 |  | 
| George I |  | 4 February 1761 | 1782–1803 | 24 December 1803 | Ernestine Saxe-Meiningen
 | Louise Eleonore of Hohenlohe-Langenburg 27 November 1782
 Langenburg
 four children
 |  | 
| Francis |  | 15 July 1750 | 1800–1806 | 9 December 1806 | Ernestine Saxe-Coburg-Saalfeld
 | Sophie of Saxe-Hildburghausen 6 March 1776
 Hildburghausen
 no children
 
 Augusta Reuss of Ebersdorf
 13 June 1777
 Ebersdorf
 ten children
 |  | 
| Regency of Louise Eleonore of Hohenlohe-Langenburg (1803-1821) |  | 
| Bernard II |  | 17 December 1800 | 1803–1866 | 3 December 1882 | Ernestine Saxe-Meiningen
 | Marie Frederica of Hesse-Kassel 23 March 1825
 Kassel
 two children
 | 
| Augustus |  | 23 November 1772 | 1804–1822 | 17 May 1822 | Ernestine Saxe-Gotha-Altenburg
 | Louise Charlotte of Mecklenburg-Schwerin 21 October 1797
 Ludwigslust
 one child
 
 Karoline Amalie of Hesse-Kassel
 24 April 1802
 Kassel
 no children
 | Left no male descendants. The land was inherited by his brother Frederick | 
| Ernest I |  | 2 January 1784 | 1806–1844 | 29 January 1844 | Ernestine Saxe-Coburg-Saalfeld (1800-1826)
 
 Ernestine
 Saxe-Coburg and Gotha (1826-1844)
 | Louise of Saxe-Gotha-Altenburg 3 July 1817
 Gotha
 two children
 
 Marie of Württemberg
 23 December 1832
 Coburg
 no children
 | Inherited Gotha from Frederick IX, but had to cede Saafeld to Saxe-Meiningen. The duchy changed its name to Saxe-Coburg and Gotha | 
| Frederick IV |  | 28 November 1774 | 1822–1825 | 11 February 1825 | Ernestine Saxe-Gotha-Altenburg
 | Unmarried | Brother of Augustus. Left no male descendants. The land was divided between Saxe-Coburg-Saalfeld and Saxe-Hildburghausen. | 
| Saxe-Gotha-Altenburg divided between its neighbours Saxe-Coburg-Saalfeld and Saxe-Hildburghausen | 
| Regency of Prince Joseph of Saxe-Hildburghausen (1780-1787) | Inherited Altenburg from Frederick IV, merging it with Hildburghausen. However, Frederick changed the name of the united duchy Saxe-Altenburg. | 
| Frederick |  | 29 April 1763 | 1780–1834 | 29 September 1834 | Ernestine Saxe-Hildburghausen
 (1787-1826)
 
 Ernestine
 Saxe-Altenburg
 (1826–1834)
 | Charlotte Georgine of Mecklenburg-Strelitz 3 September 1785
 Hildburghausen
 twelve children
 | 
| Charles Frederick |  | 2 February 1783 | 1828–1853 | 8 July 1853 | Ernestine Saxe-Weimar-Eisenach
 | Maria Pavlovna of Russia 3 August 1804
 St. Petersburg
 four children
 |  | 
| Joseph |  | 27 August 1789 | 1834–1848 | 25 November 1868 | Ernestine Saxe-Altenburg
 | Amelia of Württemberg 24 April 1817
 Kirchheim unter Teck
 six children
 | He implemented several buildings in Altenburg, but his government was considered conservative and resistant to reform; for this, he was forced to abdicate during the civil revolution of 1848. Left no male descendants. He was succeeded by his brother George. | 
| Ernest II |  | 21 June 1818 | 1844–1893 | 22 August 1893 | Ernestine Saxe-Coburg and Gotha
 | Alexandrine of Baden 3 May 1842
 Karlsruhe
 no children
 | Left no descendants. He was succeeded by his nephews. | 
| George |  | 24 July 1796 | 1848–1853 | 3 August 1853 | Ernestine Saxe-Altenburg
 | Marie Louise of Mecklenburg-Schwerin 7 October 1825
 Ludwigslust
 three children
 | Brother of Joseph. | 
| Charles Alexander |  | 24 June 1818 | 1853–1901 | 5 January 1901 | Ernestine Saxe-Weimar-Eisenach
 | Sophie of the Netherlands 8 October 1842
 The Hague
 four children
 |  | 
| Ernest I |  | 16 February 1826 | 1853–1908 | 7 February 1908 | Ernestine Saxe-Altenburg
 | Agnes of Anhalt-Dessau 28 April 1853
 Ludwigslust
 two children
 | Left no male descendants. He was succeeded by his nephew. | 
| George II |  | 2 April 1826 | 1866–1914 | 25 June 1914 | Ernestine Saxe-Meiningen
 | Charlotte of Prussia 18 May 1850
 Berlin
 four children
 
 Feodora of Hohenlohe-Langenburg
 23 October 1858
 Langenburg
 three children
 
 Ellen Franz
 18 March 1873
 Liebenstein
 (morganatic)
 no children
 |  | 
| Alfred |  | 6 August 1844 | 1893–1900 | 30 July 1900 | Ernestine Saxe-Coburg and Gotha
 | Maria Alexandrovna of Russia 23 January 1874
 St Petersburg
 six children
 | Son of Prince Albert of Saxe-Coburg and Gotha and Queen Victoria. Nephew of Ernest II. | 
| Regency of Prince Ernst of Hohenlohe-Langenburg (1900-1905) | Son of Prince Leopold, Duke of Albany; Nephew of Alfred. Monarchy abolished in 1918. | 
| Charles Edward |  | 19 July 1884 | 1900–1918 | 6 March 1954 | Ernestine Saxe-Coburg and Gotha
 | Victoria Adelaide of Schleswig-Holstein 11 October 1905
 Schleswig
 five children
 | 
| William Ernest |  | 10 June 1876 | 1901–1918 | 24 April 1923 | Ernestine Saxe-Weimar-Eisenach
 | Caroline Reuss of Greiz 30 April 1903
 Bückeburg
 no children
 
 Feodora of Saxe-Meiningen
 14 January 1910
 Meiningen
 four children
 | Grandson of Charles Alexander, as son of Charles Augustus, Hereditary Grand Duke of Saxe-Weimar-Eisenach. Monarchy abolished in 1918. | 
| Ernest II |  | 31 August 1871 | 1908–1918 | 22 March 1955 | Ernestine Saxe-Altenburg
 | Adelaide of Schaumburg-Lippe 17 February 1898
 Bückeburg
 (annulled 1920)
 four children
 
 Maria Triebel
 15 July 1934
 Trockenborn-Wolfersdorf
 (morganatic)
 no children
 | Grandson of George III, as son of Prince Moritz of Saxe-Altenburg. Monarchy abolished in 1918. | 
| Bernard III |  | 1 April 1851 | 1914–1918 | 16 January 1928 | Ernestine Saxe-Meiningen
 | Charlotte of Prussia 18 February 1878
 Berlin
 two children
 | Monarchy abolished in 1918. |