Walter Devereux (1387–1419)
Walter Devereux assumed a position in the retinue of Henry IV following the death of his father on 25 July 1402 at the Battle of Pilleth. On 13 December 1402 Sir Edmund Mortimer declared his rebellion against Henry IV, but Devereux stayed loyal to the king. He was probably present at the Battle of Shrewsbury on 21 July 1403, and subsequently was knighted. Sir Walter Devereux was placed on a Commission of array for Herefordshire on 8 September 1403 to raise troops for the defense against the king’s enemies who have lately invaded the realm. It is probable that Devereux was present when Henry IV faced off with a combined Welsh and French force in South Wales during the summer of 1405, but no major battle occurred and the English force had dispersed by October of that year. Devereux remained an important supporter of the efforts to suppress the rebellion in Wales as Prince Henry assumed responsibility for the fight. Walter Devereux would be among 14 men below the rank of baron who would be retained for life by Prince Henry (the future Henry V).
Walter Devereux (born 1173)
Walter Devereux was born in 1173, the son of John Devereux. His father died in 1187 possibly from involvement in the de Braose campaigns in Wales and France. The Pipe Rolls of 1190 show 8 pounds and 13 pence of oblations due the king's court were pardoned for the lands of John Devereux in Herefordshire. As Walter was under-age his lands and 2 castles (including Lyonshall) were taken into the hands of the king and placed in the possession of the sheriff of Hereford, William de Braose. Devereux participated in the expansion of the Norman holdings in Ireland, and in 1210 Walter Devereux was listed as having been responsible to John (fitzJohn) Marshal for 20 shillings of fees for the maintenance of soldiers ‘beyond the water that is called Stiuthe,' and 2 marks for those at Carrickfergus in Ireland