Isabelle de Clare

     Isabelle de Clare was born before 1176.¹ She was the daughter of William FitzRobert and Hawise de Beaumont.

Isabelle de Clare married John Lackland King of England, age 21 , son of Henry II Curt Mantel King of England and Eleanor of Aquitaine, on 29 August 1189.^2,3,4,1,5 Isabelle and John were divorced in 1199; John divorced her on the ground of consanguinity; her grandfather, Robert, being an illegitimate son of Henry I.

Isabelle married second on 20 January 1214 Geoffrey de Mandeville, Earl of Essex and Gloucester, the son of Geoffrey FitzPiers, Earl of Essex and Beatrice de Say. Geoffrey married first, Maud, daughter of Robert FitzWauter of Woodham and Gunnor de Valoines. Geoffrey de Say, attempted to recover the Mandeville estates from him in February 1213, but failed. He became the Earl of Essex on 4 November 1213. [Geoffrey married second Isabelle de Clare Countess of Gloucester] It appears that this marriage was forced upon Geoffrey. By it he became the Earl of Gloucester, however for this honor, he had to pay 20,000 marks. In April of 1215, he joined the barons against King John. On 16 December 1215, he and his brother, William, were excommunicated by the Pope. He was killed at a tournament 23 February 1216 in London, England. He was buried in Trinity Priory, Aldgate, London, England.^1,5,4

Isabelle married third in September 1217 Hubert de Burgh, Earl of Kent, the son of Walter de Burgh. Hubert married first, Beatrice de Warenne, daughter of William de Warenne and Beatrice le Pierrepont. [Hubert married second, Isabelle de Clare Countess of Gloucester] On 19 June 1221 Hubert, married third, Margaret of Scotland, daughter of William I "the Lion" King of Scotland and Ermengarde de Beaumont. He died 12 May 1243 in Banstead, Surrey, England. He was buried in Black Friars Church, Holborn, London, England.^1,5,4 She died on 14 October 1217.^1,5,3 She was buried at Canterbury Cathedral, Canterbury, Kent, England.^1,5