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, 7th Baron Ferrers of Chartley
Walter Devereux supported Richard III of England during his reign, and fought by his side at the Battle of Bosworth (22 August 1485). There, Lord Ferrers commanded in the vanguard under John Howard, Duke of Norfolk, alongside Sir Robert Brackenbury and Thomas Howard, Earl of Surrey. Devereux was slain during the initial fight with the opposing van under John de Vere, 13th Earl of Oxford, fighting next to the young John, Lord Zouche. An in-law, Sir John Ferrers, was also killed at Bosworth. He was attainted after his death on 7 November 1485.