Guillaume married Agnès DE NEMOURS, daughter of Seigneur Philippe I DE NEMOURS et de Guercheville, Grand Chambellan de France and Aveline DE MELUN, in Aug 1212. (Agnès DE NEMOURS died on 1 Sep 1213.)
Marriage Information:
Guillaume also married Dame Mathilde DE LA LANDE-PATRY about 1213. (Dame Mathilde DE LA LANDE-PATRY was born about 1170 and died about 1215.)
Marriage Information:
Guillaume also married Jeanne DE LOURY about 1215. (Jeanne DE LOURY died in 1282.)