Walter Devereux, 7th Baron Ferrers of Chartley
Walter Devereux was with the army as Edward IV marched north, and fought in the victory at the Battle of Towton on 29 March 1461, where he was knighted. On 8 July Devereux was appointed Justice of the Peace, and place on the Commission of Array for Herefordshire, Gloucestershire, and Shropshire to raise troops to stamp out Lancastrian resistance in Wales. He was also placed on a commission of Oyer and terminer to inquire into all treasons, insurrections and rebellions in South Wales, and granted the authority to receive submission into the king's peace of rebels. In September Walter Devereux met with the king and William Herbert at Ludlow Castle where they were assigned to take into the king's hands all the castles, lordships, manors, land and possessions of the late Humphrey, Duke of Buckingham, in South Wales. On 30 September 1461, Herbert and Devereux captured Pembroke Castle. On 16 October Herbert and Devereux defeated the Lancastrians under Pembroke and Exeter at the Battle of Twt Hill, effectively ending resistance in Wales. Walter Devereux attended Parliament on 4 November 1461, but was back in Wales for the capture of Denbigh Castle in January 1462.
Walter Devereux, 7th Baron Ferrers of Chartley
As a member of the Council of Wales, Walter Devereux was probably with Edward V when he was declared king following the sudden death of Edward IV on 9 April 1483. It would be expected that he accompanied Edward as he set out for London, and was probably among the retinue that was dismissed when Richard, Duke of Glouucester intercepted them at Stony Stratford, Buckinghamshire on 29 April. Following the deposition of Edward V and crowning of the Duke as Richard III on 6 July 1483, Walter Devereux transferred his allegiance to the new king and was confirmed as Justice of the Peace for Herefordshire, Gloucestershire, Shropshire, and Hertfordshire. On 1 August Walter Devereux of Ferrers; his son, Sir John Devereux of Ferrers; and others were assigned in Herefordshire to assess and appoint collectors of the subsidies granted by the last Parliament from aliens (with the exception of the nations and merchants of Spain, Brittany, and Almain). Devereux attended Parliament on 23 January 1484, and was assigned to raise an army on 1 May 1484 in Hertfordshire, and Herefordshire. He was rewarded with the grant of Cheshunt manor, Hertfordshire, for life on 12 August; and assigned to investigate certain treasons and offenses committed by William Colingbourne late of Lidyard, Wiltshire; and John Turburville late of Firemayne, Dorset.