"[2] He was active in the field against the Welsh for many years, and at the end of his life campaigned against the Scots.
[3][4] In 1294, he raised the siege of Conwy Castle, where the King had been penned in,[5] crossing the estuary.
[6] He was victorious on 5 March 1295 at the battle of Maes Moydog against the rebel prince of Wales, Madog ap Llywelyn.
[7] 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.
[8] His father was William (III) de Beauchamp of Elmley Castle, Worcestershire, and his mother was Isabel de Mauduit, sister and heiress of William Mauduit, 8th Earl of Warwick, from whom he inherited his title in 1268.