Ja'far ibn Abdallah al-Mansur

Ja'far ibn Abdallah al-Mansur (Arabic: جعفر بن عبد الله المنصور) was the elder son of second Abbasid caliph al-Mansur and elder brother of third Abbasid caliph al-Mahdi. As the elder son of al-Mansur, he was the candidate to the caliphal throne until his premature death.

Ja'far ibn Abdallah al-Mansur جعفر بن عبد الله المنصور
Governor of Mosul
Tenure	762 – 764
Born	c. 742/43 Humayma, Bilad al-Sham (now Jordan)
Died	c. 767
Spouse	Salsal bint Atta
Children	Zubaidah[1] Lubabah
Names Abu Zubaidah Ja'far ibn Abdallah al-Mansur
Dynasty	Abbasid
Father	al-Mansur
Mother	Umm Musa Arwa bint Mansur al-Himyari
Religion	Islam
Military career
Allegiance	Abbasid Caliphate
Branch	Abbasid army

Life

Ja'far was the son of Abdallah ibn Muhammad al-Abbasi al-Hashimi (the future caliph al-Mansur) in 742/743. When Ja'far was eleven or twelve year old, his father became caliph.

His mother was Arwa. She was al-Mansur's first wife. Arwa also known as Umm Musa, whose lineage went back to the kings of Himyar.^[2] Her father was Mansur al-Himyari. She had a brother named Yazid.^[3]

Arwa had two sons, Muhammad (future Caliph al-Mahdi) and Ja'far.^[2] She died in 764.^[2] The two sons of Arwa, Ja'far and Muhammad were regarded as his heirs after the removal of Isa ibn Musa as heir. However, Ja'far died during his father al-Mansur's reign. His brother, Muhammad became sole candidate to the throne.

One of his al-Mansur's concubines was a Kurdish woman. She was the mother of al-Mansur's son Ja'far.^[3] Al-Mansur named this son after his elder son.

After Ja'far's death, his father took care of his young children. When his father, al-Mansur died. His brother caliph al-Mahdi took responsibility for his children. Al-Mahdi married his son and heir to Ja'far's daughter Zubaidah.

Relatives

Ja'far was related to several powerful figures of Abbasid House. He was the older brother of al-Mahdi and he was also maternal grandfather of al-Amin.

Jafar also had several half-siblings, After his mother's death, his father remarried and had children from his wives.

No.	Abbasids	Relation
1	Al-Saffah	Uncle
2	Al-Mansur	Father
3	Al-Mahdi	Brother
4	Musa al-Hadi	Nephew
5	Harun al-Rashid	Nephew (Son-in-law)
6	Al-Amin	Maternal-grandson
7	Zubaidah	Daughter
8	Sulayman	Half-brother
9	Isa ibn al-Mansur	Half-brother
10	Ya'qub	Half-brother
11	Jafar ibn al-Mansur	Half-brother
12	Salih al-Miskin	Half-brother
13	Qasim	Half-brother
14	Aliyah	Half-sister

The genealogy of the Abbasids including their rival Zaydi imams

Abbasids   Caliphs of the Abbasid Caliphate   Caliphs of Cairo   Zaydi imams ʿAbd al-Muṭṭalib ibn ʿHāshīm ʾAbū Ṭālib ibn ʿAbd al-Muṭṭalib Abū'l-Fādl al-ʿAbbās ibn ʿAbd al-Muṭṭalib ʿAbd Allāh ibn ʿAbd al-Muṭṭalib ʿAlīyyū'l-Murtaḍžā (1st Imām of Kaysāniyyā, Zaydīyyā, Imāmiyyā) Hibr al-Ummah ʿAbd Allāh ibn al-ʿAbbās Khātam al-Nabiyyin Abū'l-Qāsīm Muḥammad ibn ʿAbd Allāh Al-Ḥasan al-Mujtabā (2nd Imām of Kaysāniyyā, Zaydīyyā, Imāmiyyā) Hussayn ibn Ali (3rd Imām of Kaysāniyyā, Zaydīyyā, Imāmiyyā) Abū'l-Qāsīm Muḥammad al-Hānafīyya (4th Imām of Kaysāniyyā) ʿAlī ibn ʿAbd Allāh al-Sajjad Al-Ḥasan al-Mu'thannā (5th Imām of Zaydiyyā) Ali al-Sajjad (Zayn al-ʿĀbidīn) (4th Imām of Zaydiyyā, Imāmiyyā) Abū Hāshīm ʿAbd Allāh ibn Muḥammad (5th Imām of Hāsheemīyyā) Muḥammad "al-Imām" (6th Imām of Hāsheemīyyā) 716/7 - 743 ʿAbd Allāh ibn ʿAlī (Governor of Syria) 750–754 Ṣāliḥ ibn ʿAlī (Governor of Egypt) 750–751 ʿAbd Allāh al-Kāmīl ibn al-Ḥasan al-Mu'thannā Zayd ibn Ali (6th Imām of Zaydiyyā) Ibrāhim (Ebrāheem) "al-Imām" (7th Imām of Hāsheemīyyā) 743 - 749 Abū Jāʿfar ʿAbd Allāh al-Mānṣūr (2) r. 754–775 Abū'l-ʿAbbās ʿAbd Allāh as-Saffāh (1) r. 750–754 Mūsā ibn Muḥammad "al-Imām" Nafsū'zZakiyya (First elected caliph by Ibrāhim, Mānṣūr, Saffāh, Imām Mālīk & Abū Ḥanīfa) (8th Imām of Zaydiyyā) Yahya ibn Zayd (7th Imām of Zaydiyyā) Abū Muslīm al-Khurāsānī (Governor of Khurasan) 748–755 Muḥammad al-Mahdī (3) r. 775–785 Jāʿfar (Wali al-Ahd & Governor of Mosul) 762–764 ʿĪsā ibn Mūsā (Governor of Kufa) 750–765 ʿAbd Allāh Shāh Ghāzī (ʿAbd Allāh ibn Muḥammad) (10th Imām of Zaydiyyā) Ibrāhīm ibn ʿAbd Allāh al-Kāmīl ibn al-Ḥasan al-Mu'thannā ibn Ḥasan al-Mujtabā (9th Imām of Zaydiyyā) Al-Ḥusayn ibn ʿAlī al-ʿĀbid ibn al-Ḥasan al-Mu'thallath ibn Ḥasan al-Mu'thannā (12th Imām of Zaydiyyā) Hārūn ar-Rāshīd (5) r. 786–809 ʿMūsā al-Hādī (4) r. 785–786 (The Governors) Mūsā (Kufa, Egypt & Medina) Ismā'īl (Egypt) Dā'wūd (Medina) Sulaymān ibn ʿAbd Allāh al-Kāmīl ibn al-Ḥasan II (Emir of Tlemcen) (Sulaymanid dynasty of Western Algeria) Yaḥyā ibn ʿAbd Allāh al-Kāmīl ibn al-Ḥasan al-Mu'thannā (14th Imām of Zaydiyyā) Ibrāhīm Ṭabāṭabā ibn Ismāʿīl al-Dībādj ibn Ibrāhīm al-Ghamr ibn al-Ḥasan al-Mu'thannā Muḥammad al-Mu'tasim (8) r. 833–842 Abd Allāh al-Ma'mun (7) r. 813–833 Muḥammad al-Amin (6) r. 809–813 Sūlaymān ibn ʿAbd Allāh as-Sālih ibn Mūsā al-Jawn ibn ʿAbd Allāh al-Kāmīl ibn al-Ḥasan al-Mu'thannā Idrīs the Elder ibn ʿAbd Allāh (Idrisid dynasty of Morocco) (15th Imām of Zaydiyyā) Muḥammad ibn IbrāhīmṬabāṭabā (16th Imām of Zaydiyyā) Jāʿfar al-Mutawakkil (10) r. 847–861 Muḥammad ibn Muḥammad al-Mu'tasim Hārūn al-Wathiq (9) r. 842–847 Mūsā II ibn ʿAbd Allāh as-Sâlih ibn Mūsā al-Jawn ibn ʿAbd Allāh al-Kāmīl Idrīs ibn Idrīs (2nd Zaydī Imām of Idrisids in Morocco) Muḥammad al-Muntasir (11) r. 861–862 Ṭalḥa al-Muwaffaq (Regent) 870–891 Aḥmad al-Musta'in (12) r. 862–866 Muḥammad al-Muhtadi (14) r. 869–870 Ismāʿīl ibn Yūsūf Al-Ukhayḍhir ibn Ibrāhīm ibn Mūsā al-Jawn ibn ʿAbd Allāh al-Kāmīl ibn Ḥasan al-Mu'thannā Al-Qāsīm ar-Rassī ibn IbrāhīmṬabāṭabā (19th Imām of Zaydiyyā) Ibrahim al-Mu'ayyad (Wali al-Ahd & Governor of Syria) 850–861 Aḥmad al-Mu'tadid (16) r. 892–902 Muḥammad al-Mu'tazz (13) r. 866–869 Aḥmad al-Mu'tamid (15) r. 870–892 Muḥammad ibn Yūsūf Al-Ukhayḍhir (1st Zaydī Imām of Ukhaydhirites in Najd and Al-Yamama) Abūʾl-Ḥusayn Al-Hādī ilāʾl-Ḥaqq Yaḥyā ibn al-Ḥusayn (1st Zaydī Imām of Rassids in Yemen) ʿAlī al-Muktafī (17) r. 902–908 Jāʿfar al-Muqtadir (18) r. 908–929, 929–932 Muḥammad al-Qāhir (19) r. 929, 932–934 Jāʿfar al-Mufawwid (Wali al-Ahd) 875–892 Zayd ibn al-Ḥasan al-Mujtabā ibn ʿAlī ibn Abī Ṭālib ʿAbd Allāh al-Mustakfī (22) r. 944–946 Al-Faḍl al-Mutīʿ (23) r. 946–974 Ishāq ibn Jāʿfar al-Muqtadir Muḥammad al-Rādī (20) r. 934–940 Ībrāhīm al-Muttaqī (21) r. 940–944 Ḥasan ibn Zayd ibn al-Ḥasan al-Mujtabā ibn ʿAlīyyū'l-Murtaḍžā ʿUmar al-Ashraf ibn ʿAlī Zayn al-ʿĀbidīn ibn al-Ḥusayn ʿAbd al-Karīm al-Ṭāʾiʿ (24) r. 974–991 Aḥmad al-Qāʿdīr (25) r. 991–1031 Ismāʿīl ibn Ḥasan ibn Zayd ibn al-Ḥasan al-Mujtabā ʿAlī ibn ʿUmar al-Ashraf ibn ʿAlī Zayn al-ʿĀbidīn Al-Ḥusayn Dhu'l-Dam'a ibn Zayd ibn ʿAlī Zayn al-ʿĀbidīn ʿAbd Allāh al-Qāʿīm (26) r. 1031–1075 Muḥammad ibn Ismāʿīl ibn Ḥasan ibn Zayd Al-Ḥasan ibn ʿAlī ibn ʿUmar al-Ashraf Yaḥyā ibn al-Ḥusayn Dhu'l-Dam'a ibn Zayd Muḥammad Dhakīrat ad-Dīn (Wali al-Ahd) 1039–1056 Zayd ibn Muḥammad ibn Ismāʿīl ibn Ḥasan ʿAlī ibn al-Ḥasan ibn ʿAlī ibn ʿUmar al-Ashraf ʿUmar ibn Yaḥyā ibn al-Ḥusayn Dhu'l-Dam'a ʿAbd Allāh al-Mūqtādī (27) r. 1075–1094 Al-Dāʿī al-Kabīr Hasan ibn Zayd (1st Zaydī Imām of Zaydīds in Tabaristan) Al-Dāʿī al-Ṣaghīr Muhammad ibn Zayd (2nd Zaydī Imām of Zaydīds in Tabaristan) Yaḥyā ibn ʿUmar (20th Imām of Zaydiyyā in Samarra) Aḥmad al-Mūstāzhīr (28) r. 1094–1118 Al-Nāṣir liʾl-Ḥāqq Hasan al-Utrush (3rd Zaydī Imām of Zaydīds in Tabaristan) Al-Faḍl al-Mūstārshīd (29) r. 1118–1135 Al-Mānṣūr al-Rāshīd (30) r. 1135–1136 Muḥammad al-Mūqtāfī (31) r. 1136–1160 Alī ibn al-Faḍl al-Qabī Yūsuf al-Mūstānjīd (32) r. 1160–1170 al-Hāsān ibn Alī Al-Hāssān al-Mūstādī' (33) r. 1170–1180 Abū Bakr ibn al-Hāsān Aḥmad al-Nāsīr (34) r. 1180–1225 Abi 'Alī al-Hāsān ibn Abū Bakr Muḥammad az-Zāhīr (35) r. 1225–1226 Malīka'zZāhīr Rūkn ad-Dīn Baybars (Mamluk Sultanate Sultan of Egypt) r. 1260–1277 Al-Mānsūr al-Mūstānsīr (36) r. 1226–1242 Abū'l-Qāsim Aḥmad al-Mūstānsīr (1) r. 1261 Abū'l-ʿAbbās Aḥmad al-Hakim I (2) r. 1262–1302 ʿAbd Allāh al-Mūstā'sīm (37) r. 1242–1258 Abū'r-Rabīʿ Sulaymān al-Mustakfī I (3) r. 1302–1340 Aḥmad ibn Aḥmad al-Ḥākim bi-amr Allāh Abū'l-ʿAbbās Aḥmad al-Hakim II (5) r. 1341–1352 Abū'l-Fatḥ Abū Bakr al-Mu'tadid I (6) r. 1352–1362 Abū Isḥāq Ibrāhīm al-Wāṯiq I (4) r. 1340–1341 Abū ʿAbd Allāh Muḥammad al-Mutawakkil I (7) r. 1362–1377, 1377–1383, 1389–1406 Abū Yāḥyā Zakariyāʾ al-Musta'sim (8) r. 1377, 1386–1389 Abū Ḥafs ʿUmar al-Wāṯiq II (9) r. 1383–1386 Abū'l-Faḍl al-ʿAbbās al-Musta'īn (10) r. 1406–1414 Sultan of Egypt r. 1412 Abū'l-Fatḥ Dāwud al-Mu'tadīd II (11) r. 1414–1441 Abū'r-Rabīʿ Sulaymān al-Mustakfī II (12) r. 1441–1451 Yaʿqūb ibn Muḥammad al-Mutawakkil ʿalā'Llāh Abū'l-Baqāʾ Ḥamza al-Qāʾim (13) r. 1451–1455 Abū'l-Maḥāsin Yūsuf al-Mustanjid (14) r. 1455–1479 Abū'l-ʿIzz ʿAbd al-ʿAzīz al-Mutawakkil II (15) r. 1479–1497 Abū'ṣ-Ṣabr Yaʿqūb al-Mustamsik (16) r. 1497–1508, 1516–1517 Muḥammad al-Mutawakkil III (17) r. 1508–1516, 1517