Guillaume De Belleme

Guillaume's mother was Gisele Chevreuse.  His maternal grandfather was Guy De Chevreuse. He had fourteen brothers and four sisters, named Yves Ier De Beaumont Sur, Yves, Yves, Yves, Ivo, Ives Or Ivo, Ivo, Count Yvyes, Ivo Count, Countde Bellomontensis, Yvres II Sire, Eudes, Ivo, Ivan, Beaumont, De Beaumont, Godebelt and Hildeburge.  He died in 1026.¹