Humphrey Stafford, 1st Duke of Buckingham

Humphrey Stafford, 1st Duke of Buckingham, 6th Earl of Stafford, 7th Baron Stafford (15 August 1402 – 10 July 1460) of Stafford Castle in Staffordshire, was an English nobleman and a military commander in the Hundred Years' War and the Wars of the Roses. Through his mother he was of royal descent from King Edward III, his great-grandfather, while from his father, he inherited, at an early age, the earldom of Stafford.

Source: Wikipedia — Humphrey Stafford, 1st Duke of Buckingham (CC BY-SA 4.0)