Third Duke of Burgavenny. He was executed for treason due to his opposition to Cardinal Woolsey.

Buckingham, with his Plantagenet blood and numerous connections by descent or marriage with the rest of the aristocracy, became an object of Henry's suspicion. During 1520, Buckingham became suspected of potentially treasonous actions and Henry VIII authorised an investigation. The King personally examined witnesses against him, gathering enough evidence for a trial. The Duke was finally summoned to Court in April 1521 and arrested and placed in the Tower. He was tried before a panel of 17 peers, being accused of listening to prophecies of the King's death and intending to kill the King; however, the King's mind appeared to be decided and conviction was certain. He was executed on Tower Hill on 17 May. He was posthumously attainted by Act of Parliament on 31 July 1523.[7]