Isabella Fitzwilliam Countess of Gloucester
- Born: Abt 1160, England
- Marriage (1): John King of England on 29 Aug 1189 in Wiltshire, England
- Marriage (2): Geoffrey de Mandeville 2nd Earl of Essex, 4th Earl of Gloucester on 16 Jan 1214 in England
- Marriage (3): Sir Hubert de Burgh on 17 Sep 1217 in Gloucestershire, England
- Died: 14 Oct 1217, England aged about 57
- Buried: After 14 Oct 1217, England
FamilySearch ID: LHGN-2GP.
Isabella married John King of England, son of Henry II, King of England and Éléonore d'Aquitaine, on 29 Aug 1189 in Wiltshire, England. (John King of England was born on 24 Dec 1166 in Beaumont Palace, Oxford, Oxfordshire, England, died on 19 Oct 1216 in Newark Castle, Nottinghamshire, England and was buried after 19 Oct 1216 in Worcester Cathedral Churchyard, Worcestershire, England.)
Isabella next married Geoffrey de Mandeville 2nd Earl of Essex, 4th Earl of Gloucester, son of Geoffrey FitzPiers 1st Earl of Essex and Beatrice de Saye, on 16 Jan 1214 in England. (Geoffrey de Mandeville 2nd Earl of Essex, 4th Earl of Gloucester was born about 1185 in Saffron Walden, Essex, England, died on 23 Feb 1216 in London, England and was buried in Feb 1216 in London, England.)
Isabella next married Sir Hubert de Burgh, son of Walter de Burgh and Lady Alice, on 17 Sep 1217 in Gloucestershire, England. (Sir Hubert de Burgh was born about 1160 in Norfolk, England, died on 5 May 1243 in Banstead, Surrey, England and was buried after 5 May 1243 in Blackfriars, London, Middlesex, England.)
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