Guillaume married Alix De Courtenay, [COUNTESS OF ANG about 1178, and was divorced. Alix (daughter of Pierre Prince Of France, [SEIGNEUR DE COU and Isabelle (Elizabeth) De Courtenay) was born about 1160 in Of, COURTENAY, Galinois, France; died in 1218 in , , , France. [Group Sheet] [Family Chart]