Agnes Howard, Duchess of Norfolk Agnes Howard, Duchess of Norfolk Agnes Howard (née Tilney) (c. 1477 – May 1545) was the second wife of Thomas Howard, 2nd Duke of Norfolk. Two of King Henry VIII's Queens were her step-granddaughters, Anne Boleyn, and Catherine Howard. After her mother's death, Catherine Howard was in the Dowager Duchess's care during her youth, and as a result of the Duchess's lax guardianship, committed sexual indiscretions while in the Duchess's household which led to her execution as Queen. Agnes' brother, Sir Philip Tilney of Shelley (d.1533), was the paternal grandfather of Edmund Tilney (1535/6–1610), Master of the Revels to Queen
Catherine Howard into morbidity and indulged his appetite for food. Catherine herself remained in limbo until Parliament introduced a bill of attainder on 29 January 1542, which was passed on 7 February 1542. The Royal Assent by Commission Act 1541 made it treason, and punishable by death, for a queen consort to fail to disclose her sexual history to the king within twenty days of their marriage, or to incite someone to commit adultery with her. This solved the matter of Catherine's supposed precontract and made her unequivocally guilty. When the Lords of the Council came for her, she panicked and screamed