William III Talvas, died 30 June 1171, Count of Alencon & Ponthieu, son of Robert II de Belleme, 3rd Earl of Shrewsbury, Seigneur of Belleme, Domfront and Alencon, born between 1052 and 1056, died 8 May, not earlier than 1131, by his wife, Agnes, living 1100, daughter of Guy I, died 1100, Count of Ponthieu and Montreuil. [Ancestral Roots]
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[WILLIAM (TALVAS), only son and heir, became Count of Ponthieu in succession to his father, probably between 4 March 1105/6, when William and his father Robert de BellÍme confirmed to the abbey of Marmoutier all its possessions in all their land and in Ponthieu, and 1110 or 1111, when William alone, as Count of Ponthieu, made a gift to the abbey of Cluny. In June 1119 Henry I restored to him all his father's lands in Normandy. He resigned Ponthieu to his son Guy, in or after 1126, but before 17 October 1129, but retained the title of Count of Ponthieu. In 1135 Henry I confiscated his Norman lands, whereupon William joined Geoffrey Plantagenet, with whom he invaded Normandy after the death of Henry I.
He married Ela, widow of Bertrand, COUNT OF TOULOUSE, and daughter of Eudes BOREL, DUKE OF BURGUNDY, by Maud, sister of William TESTARD, COUNT OF BURGUNDY. He died 30 June 1171.] [Complete Peerage XI:697, (transcribed by Dave Utzinger)]