William I Garces Count of Fezensac

William I Garces Count of was born about 0878 in Fezensac, Gascony, France.  William I Garces Count of's father was Garcia Sanchez , Count of Gascony and his mother was Aminiana (Munia) d' Angouleme. He had a brother and a sister, named Renaldo Count de and Acibella of.  He was the second oldest of the three children.