William I (III) of Hainault, count of Hainault, Holland and Zeeland (d. 1337)

William I (III) (b. 1286, d. 1337), son of John II, count of Hainault, and Philippine de Luxemburg. He married Jeanne de Valois. Philippa of Hainault, the wife of king Edward III of England, was one of their daughters.

For his children, see Margaret, Philippa, Jeanne, Isabella, William II (IV).

Occurrences:

Click here to find all occurrences of this name.