William II, Count of Hainaut

William II, Count of Hainaut

Count of Hainaut from 1337 to 1345

William II was Count of Hainaut from 1337 until his death. He was also Count of Holland and Count of Zeeland. He succeeded his father, Count William I of Hainaut. While away fighting in Prussia, the Frisians revolted. William returned home and was killed at the Battle of Warns.