William de Beauchamp, 9th Earl of Warwick

Be21-1 William de Beauchamp, 9th Earl of Warwick (1298) 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.


He was a close friend of Edward I of England, and was an important leader in Edward's invasion of Wales in 1277. In 1294 he raised the siege of Conwy Castle, where the King had been penned in[4], crossing the estuary[5]. He was victorious on March 5, 1295 at the battle of Maes Madog, against Madog ap Llywelyn[6]. In a night attack on the Welsh infantry, he used cavalry to drive them into compact formations, which were then shot up by his archers, and charged.


His father was William de Beauchamp (Be23) of Elmley, his mother Isabel Mauduit, sister and heiress of William Mauduit, 8th Earl of Warwick andAlice de Newberg.

He married Maud FitzGeoffrey, daughter of Sir John FitzGeoffrey, Lord Kirtling, Baron Berkhamstead, and Isabella le Bigod. Their children included:

  1. ^T. F. Tout, The History of England From the Accession of Henry III. to the Death of Edward III (1216-1377) , online.
  2. ^ R. R. Davies, The Age of Conquest: Wales 1063-1415 (1991), p. 383.
  3. ^ Powicke, p. 442-3.
  4. http://www.thepeerage.com/p2648.htm#i26478
  5. ^http://www.thepeerage.com/p21562.htm#i215617