William, Duke of Brunswick-Grubenhagen

William of Brunswick-Grubenhagen
Noble family	House of Welf
Father	Henry I, Duke of Brunswick-Grubenhagen
Mother	Agnes of Meissen
Born	c. 1298
Died	1360

William of Brunswick-Grubenhagen (c. 1298 – 1360) was a Prince of Brunswick-Grubenhagen.

He was the third son of Duke Henry I "Mirabilis" of Brunswick-Grubenhagen and his wife Agnes, née Countess of Meissen. After his father's death in 1322, he ruled Grubenhagen jointly with his brothers, Henry II and Ernest I.

William died childless in 1360. After his death, his brother Ernest ruled the principality of Grubenhagen alone.

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