William III of Holland
Count of Holland, Zeeland and Hainaut (1287–1337)
William the Good (1286 – 7 June 1337) was count of Hainaut (as William I), Avesnes, Holland (as William III), and Zeeland (as William II) from 1304 to his death.
![](http://up.wiki.x.io/wikipedia/commons/thumb/b/b4/Portret_van_Willem%2C_Graaf_van_Henegouwen_-_Middelburg_-_20154852_-_RCE.jpg/220px-Portret_van_Willem%2C_Graaf_van_Henegouwen_-_Middelburg_-_20154852_-_RCE.jpg)
William the Good (1286 – 7 June 1337) was count of Hainaut (as William I), Avesnes, Holland (as William III), and Zeeland (as William II) from 1304 to his death.