Sybilla Corbet of Alcester

Lady Sybilla Corbet of Alcester (c. 1077 – 1157) was an English noblewoman and mistress of King Henry I of England.^[1] She was the mother of five of his children and was sometimes known as Lucy or Adela.^[2]

Life

Sybilla was born in Alcester, Warwickshire. She was a daughter and co-heiress of Robert Corbet, Lord of Alcester and his wife Adele of Alcester. She was a known mistress of King Henry I.^[3][1] She married Herbert FitzHerbert,^[3] Chamberlain of England and son of Herbert of Winchester and Emma of Blois, shortly after giving birth to her last child by the King.^[1] She died after 1157 and was survived by her husband, who died in 1165.^[2]

Issue

Sybilla is thought to be the mother of five of Henry I's illegitimate children:^[2]

• Sybilla of Normandy (c. 1092 – 1122), married King Alexander I of Scotland, no issue
• William Constable (c. 1105 – aft. 1187)
• Reginald of Dunstanville (c. 1110 – 1175),^[3] 1st Earl of Cornwall, married Mabel FitzWilliam, daughter of William FitzRichard
• Gundred of England (1114–1146), married Henry de la Pomeroy in 1130, son of Joscelin de la Pomerai
• Rohese of England (b. 1114), married William de Tracy, son of Turgisus de Tracy in 1075, had issue
• Aeliz Maminot

With her husband Herbert FitzHerbert:^[1]

• Robert FitzHerbert (b. 1116)
• Herbert FitzHerbert