Hamelin D'ANJOU , Earl of Surrey

  General Notes:

Hamelin de Warenne, Earl of Surrey (c. 1130 \endash 7 May 1202) (alias Hamelin of Anjou and anachronistically Hamelin Plantagenet, was an Anglo-Angevin nobleman, a half-brother of King Henry II of England, and was prominent at the courts of the Plantagenet kings of England, Henry II and his sons Richard I and John.
He was an illegitimate son of Geoffrey of Anjou, the teenaged Count of Anjou and son-in-law to King Henry I, and thus an elder half-brother of King Henry II, and uncle to King Richard I and King John (sons of Henry II).

King Henry II arranged for him to marry one of the wealthiest heiresses in England, Isabel de Warenne, 4th Countess of Surrey, the widow of William of Blois. Hamelin and Isabella married in April 1164, and after the marriage he was recognized as Comte de Warenne, that being the customary designation for what more technically should be Earl of Surrey. In consequence of the marriage Hamelin adopted the surname de Warenne, as did his descendants. By his wife he had one son and four daughters as follows:

William de Warenne, 5th Earl of Surrey, only son and heir, who married Maud Marshal.
Clemence (aka Adela), mistress of her cousin King John, and by him the mother of Richard FitzRoy, feudal baron of Chilham, in Kent.
Ela, who married firstly Robert de Newburgh and secondly William FitzWilliam of Sprotborough.
Maud (alias Matilda), who married firstly Henry II, Count of Eu and Lord of Hastings, secondly Henry d'Estouteville, Seigneur de Valmont.
Isabel, who married firstly Robert de Lacy of Pontefract, and secondly Gilbert de l'Aigle, Lord of Pevensey.

Hamelin married Isabel DE WARENNE , 4th Countess of Surrey in Apr 1164. (Isabel DE WARENNE , 4th Countess of Surrey was born about 1137 and died on 12 Jul 1203.)