William married Mathilde Of BURGUNDY on 25 Feb 1157 in Montpellier. Mathilde (daughter of Hugh II Duke Of BURGUNDY and Mathilde DE TURENNE) was born in 1130; died before 29 Sep 1172. [Group Sheet] [Family Chart]
William married Sibel De Vasto DI SAVONA in Aug 1129. Sibel (daughter of Bonifacio I Marchese Di Savona VASTO and Agnes DE VERMANDOIS) was born about 1104 in Vasto, Chieti, Italy; died before 1146. [Group Sheet] [Family Chart]