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William II of Bavaria (5 April 1365—31 May 1417) wasDuke of Bavaria-Straubing andcount of Holland (listed asWilliam VI),Hainaut (listed asWilliam IV) andZeeland. He ruled from 1404 until 1417, when he died from an infection caused by a dog bite.
In 1408 in theBattle of Othée, William,John the Fearless of Burgundy, andLouis VII of Bavaria defeated the citizens ofLiège who had revolted against William's brotherJohn, thebishop of Liège.[2] As a result, he was no longer, as count of Hainaut, obliged to pay homage to the bishop. William's reign was marked by internal strife within the county of Holland. In particular, LordJohn V of Arkel supported William's enemies in Holland. William conquered Arkel in 1412, at which point John accepted his defeat and Arkel was annexed by Holland.
William claimedFriesland as the count of Holland. Expeditions under previous counts had failed to conquer Friesland. OnlyStavoren was captured in 1398. William II also sent expeditions to the region but Stavoren was regained by the Frisians in 1414. Prior to his death, William ensured his nobles swore allegiance to his only daughter,Jacqueline.
However, on William's death in 1417, a war of succession broke out between his brotherJohn, the bishop of Liège, and his daughter, Jacqueline. This would be the last episode of theHook and Cod wars and finally place Holland and Hainaut into Burgundian hands. The duchy of Bavaria-Straubing was divided between the dukes of Bavaria, the major portion went toBavaria-Munich in 1429.