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
In 1468 Edward IV announced his intent to invade France. On 3 August 1468 Walter Devereux was assigned to muster at Gravesend with his men for service overseas, but other events in the kingdom prevented this from occurring. On 12 February 1469 he was commanded to deliver prisoners to the gaol of Hereford Castle. On 22 May he was appointed to a commission of Oyer and terminer for the counties of York, Cumberland, and Westmoreland; and the city of York. He was probably at the Battle of Edgecote Moor on 26 July 1469 when the Earl of Warwick defeated King Edward, and Devereux's brother-in-law, William Herbert, was killed. Edward IV was captured, but Warwick was forced to release him within a few months. By September 1469 Walter Devereux was assigned to raise new troops for the Yorkists in Herefordshire, Gloucestershire, Shropshire, and Worcestershire. On 16 November he was rewarded with the grant of the offices of Constable of the Castles of Brecon, Hay, and Huntington; and Steward of the Lordships of Brecon, Hay, and Huntington during the minority of Henry Stafford.