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 of those identified during restorations of the chapel during Queen Victoria's reign. She is commemorated on a plaque on the west wall dedicated to all those who died in the Tower. Upon hearing news of Catherine's execution, Francis I of France wrote a letter to Henry, regretting the "lewd and naughty [evil] behaviour of the Queen" and advising him that "the lightness of women cannot bend the honour of men". Catherine has been the subject of contention for modern biographies, "A Tudor Tragedy" by Lacey Baldwin Smith (1967), "Katherine Howard: A Tudor Conspiracy" by Joanna Denny (2006), "Katherine Howard: A