Thomas Howard, 3rd Duke of Norfolk wed Norfolk's other niece, Catherine Howard, as his fifth wife. As a result of this marriage, for a time, Norfolk enjoyed political prominence, royal favour, and material rewards. However, when Queen Catherine's premarital sexual indiscretions and her alleged adultery with Sir Thomas Culpeper were revealed to King Henry VIII by Archbishop Cranmer, the King's wrath turned on the Howard family, who were accused of concealing her misconduct. Queen Catherine Howard was condemned by a bill of attainder and was later executed on 13 February 1542. Several other members of the Howard family were sent to the Tower, including Norfolk's stepmother,
Agnes Howard, Duchess of Norfolk life imprisonment and loss of goods, although most were pardoned after Queen Catherine's execution. The Dowager Duchess, although included in the indictment, was not brought to trial as she was 'old and testy', and 'may die out of perversity to defraud the King's Highness of the confiscation of her goods', but like the others she was sentenced to imprisonment and forfeiture of lands and goods. On 6 February 1542 a bill of attainder against Queen Catherine and Lady Rochford received final reading, and on 13 February 1542 the Queen and Lady Rochford were beheaded on Tower Green. The King was