<Li> Margaret of Anjou: her attainder of Richard of York compelled him to invade England and attempt to seize the throne after the Battle of Northampton, which led to the penultimate phases of the War of the Roses . </Li> <Li> Edward IV of England: used attainder after killing his brother, George Plantagenet, Duke of Clarence for high treason . This allowed Richard III of England to seize the throne when he claimed that Edward IV's sons were illegitimate . </Li> <Li> Henry VII: initially attainted men after he ascended the throne . He used the threat of attainder as a means to keep the few nobles who survived the War of the Roses in line . Often, however, he would penalize them with exorbitant fees and fines, or force them to have bonds which would be forfeit unless they exhibited good behaviour (his goal was to reduce the number of nobles with private armies of retainers .) Henry VII attainted 138 men, of whom he reversed only 46 attainders, and some of these were conditional . </Li> <Li> Henry VIII: compelled parliament to attaint many nobles during his lifetime, including magnates with major land holdings, and any magnates whom he came to mistrust . Examples include: <Ul> <Li> Anne Boleyn: Before her execution, she was stripped of her title, and her marriage was annulled . </Li> <Li> Catherine Howard: Henry VIII had an Act of Attainder passed against Catherine Howard, which made it treason for a woman with an unchaste reputation to marry the king . </Li> <Li> Edward Stafford, Duke of Buckingham, one of the wealthiest magnates in England, whom Henry had executed on flimsy charges in 1521 . </Li> <Li> Margaret Pole, Countess of Salisbury: One of the last surviving noble Plantagenets of senior line . </Li> <Li> Henry Howard, Earl of Surrey: The poet son of Thomas Howard, 3rd Duke of Norfolk . </Li> </Ul> </Li>

Who was the last person executed in england under an act of attainder