William de Beauchamp, 9th Earl of Warwick

William de Beauchamp
9th Earl of Warwick
Arms of Beauchamp: Gules, a fesse between six cross crosslets or
PredecessorWilliam Mauduit, 8th Earl of Warwick
SuccessorGuy de Beauchamp, 10th Earl of Warwick
Bornc. 1238
Died1298
SpouseMaud FitzJohn, Countess of Warwick
IssueGuy de Beauchamp, 10th Earl of Warwick
Isabella de Beauchamp
FatherWilliam (III) de Beauchamp

William de Beauchamp, 9th Earl of Warwick (c. 1238 – 1298) was the eldest of eight children of William de Beauchamp of Elmley and his wife Isabel de Mauduit. He was an English nobleman and soldier, described as a "vigorous and innovative military commander." He was active in the field against the Welsh for many years, and at the end of his life campaigned against the Scots.