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 (died 1641)
Walter Devereux was sent in 1608 to a riding academy in Angers, France. He had returned by May 1613 when the divorce suit of his half-brother, Robert Devereux, began, and over the next several months was manipulated by the King and his powerful allies at the expense of Essex and the Devereux family's reputation. Essex's wife, Frances Howard, and the King's faction forced the divorce to be granted as nullity requiring impotence to permit her remarriage to the King's favorite. The ongoing slurs and insults drove Essex to challenge his brother-in-law, Henry Howard, on 20 August to a duel, and Walter would serve as one of Essex's seconds. The King would not allow the duel to go forward. On 25 September the verdict of nullity was granted, and the next day the King called a special Court of Honor to stop the duel. The Court interviewed the seconds including Walter Devereux, but the testimony was altered. Essex refused to sign the report indicating they were false. Walter signed with Richard Oubeley the following "Declaration of Essex’s Seconds":