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,
Catherine Howard later gave evidence in the inquiry against her. Mannox and Catherine both confessed during her adultery inquisitions that they had engaged in sexual contact, but not actual coitus. When questioned Catherine was quoted as saying, "At the flattering and fair persuasions of Mannox, being but a young girl, I suffered him at sundry times to handle and touch the secret parts of my body, which neither became me with honesty to permit nor him to require." The interferences by Mannox came to an end in 1538, when Catherine, now aged 15, moved to the Dowager Duchess's household in Lambeth. There