He is married to Marguerite de Valois.
They got married on May 29, 1305, he was 19 years old.Source 2
Child(ren):
Count of Hainaut Guillaume | ||||||||||||||||||||||||||||||||||
1305 | ||||||||||||||||||||||||||||||||||
Marguerite de Valois |
birth date: 1286 birth place: Hainault, Belgium death date: 7 Jun 1337 death place: Valenciennes, Departement du Nord, Nord-Pas-de-Calais, France burial place: Valenciennes, Departement du Nord, Nord-Pas-de-Calais, France Name: Count of Hainaut Guillaume III/ Ancestry.com
birth date: 1286 birth place: Hainault, Belgium Name: Count of Hainaut Guillaume III marriage date: 29 May 1305 death date: 7 Jun 1337/ Ancestry.com