Humphrey, 2nd Earl of Buckingham

Humphrey, 2nd Earl of Buckingham (1381–1399) was an English peer and member of the House of Lords.

He was Lord High Constable of England. His father, , was the youngest son of King Edward III and uncle of Richard II.

After the murder of his father, he became the ward of the crown, along with Henry of Monmouth, eldest son and heir of Henry Bolingbroke. Richard II took both boys with him to Ireland in 1398, where they were left in custody at Kells, when Richard returned to face Bolingbroke. Once Richard II has been deposed, Henry Bolingbroke ordered their release and summoned them home but Humphrey, who was sickly, died on the way on 2 September 1399. His mother Eleanor de Bohun died shortly after, allegedly because of her sorrow after the loss of her son.

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