Isabel de Warenne, 4th Countess of Surrey, was born 1130 to William de Warenne (1120-1148) and Adele de Ponthieu (c1119-1174) and died 12 July 1203 of unspecified causes. She married William of Blois (c1137-1159) 1148 JL . She married Hamelin de Warenne (c1129-1202) April 1164 JL in England. Charlemagne (747-814)/s, Hugh Capet (c940-996)/s.

In 1148, de Warenne inherited her father's lands and the earldom of Surrey and was married to William of Blois, the younger son of King Stephen, that year. The marriage occurred at a critical moment in The Anarchy as part of the king's attempt to control the de Warenne lands. The couple did not have any children and after William's death in 1159, William X, Count of Poitou sought her hand in 1162/3, but Thomas Becket refused a dispensation from affinity on the grounds of consanguinity.

In April 1164, the countess married Hamelin Plantagenet, the half-brother of King Henry II, who became jure uxoris Earl of Surrey. Hamelin died in 1202 and the countess a year later. She was buried alongside him in the chapter house of Lewes Priory.


Offspring of Isabel de Warenne and Hamelin de Warenne (c1129-1202)
Name Birth Death Joined with
William de Warenne (1166-1240) 1166 1240 Maud Marshal (1192-1248)
Adela de Warenne (c1170-c1218) 1170 1218 John of England (1167-1216)
Isabel de Warenne (?-1234)
Maud de Warenne (c1162-c1212) 1162 1212 Henri Hastings (-c1183)




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