Humphrey Stafford, First Duke of Buckingham (c. 1402-1460) was descended from Edward III via his youngest son Thomas of Woodstock. He became Earl of Stafford when only a year old when his father died at the Battle of Shrewsbury. Henry VI made him Duke of Buckingham in 1444. In the 1450s, he generally tried to negotiate peace between Lancastrians and Yorkists, but when forced to take sides, he always chose Henry VI and Lancaster. He was killed at the Battle of Northampton in 1460 -- very possibly targeted by the Neville faction. His son Henry, the second Duke, would later help put Richard III on the throne then try to overthrow him.