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 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