Walter Devereux (1411–1459)
Following the death of Edmund Mortimer, 5th Earl of March, on 18 January 1425, Richard, 3rd Duke of York inherited his estates along the Welsh Marches. This brought Walter Devereux into the retinue of the Duke, and he remained his loyal supporter throughout the War of the Roses. Devereux had been knighted by 22 September 1429 when he first represented Herefordshire in Parliament. He probably was in attendance on the Duke when he travelled with Henry VI to France for his coronation on 16 December 1429. On his return Devereux represented Herefordshire again in Parliament on 16 January 1430. He was listed on the subsidy rolls for Herefordshire of 12 January 1431 as holding his 1/3 of half a fee in Byford.
Walter Devereux, 7th Baron Ferrers of Chartley
On 6 January 1470 he was granted Oyer and terminer over Wales. He probably fought for Edward IV at the resounding victory of the Battle of Losecoat Field, which resulted in the flight of the earl of Warwick and Duke of Clarence to France. On 26 March Devereux was assigned to raise additional troops in Herefordshire to defend against the rebels. On 28 July 1470 he was rewarded with appointment as sheriff of Caernarfonshire and Master-Forester of the Snowdon Hills in North Wales for life.