Walter Devereux, 1st Earl of Essex
Walter Devereux was the eldest son of Sir Richard Devereux, who was created a Knight of the Bath on 20 February 1547 and died that same year, in the lifetime of his father, The 1st Viscount Hereford. Walter Devereux's mother was Lady Dorothy Hastings, daughter of The 1st Earl of Huntingdon and Anne Stafford, said to have been a mistress of Henry VIII. Through his paternal ancestry he was related to the Bourchier family, to which previous Earls of Essex had belonged: John Devereux, son of Walter Devereux who died at the Battle of Bosworth, married Cecily Bourchier, sister of Henry Bourchier, 2nd Earl of Essex.
Walter Devereux (died 1402)
On 18 June 1394 Walter Devereux was again placed on a commission of Oyer and Terminer for Herefordshire. On 7 August he was granted clause volumus (protection) for one half year while accompanying Richard II to Ireland, and on 28 September nominated Roger Wigmore and Thomas Oldcastle as his attorneys in his absence. Devereux was probably serving in the retinue of Thomas of Woodstock who accompanied the king. The army landed and marched towards Kilkenny undergoing harassment by Irish forces the entire way. After suffering heavy losses, Richard II agreed to negotiate, and brought the army to Dublin by December. The king abruptly returned to England to deal with the Lollard threat, and left part of the army behind under the nominal leadership of the under-age, Roger Mortimer, 4th Earl of March.