It also came to house officers of the Tower of London. In 1552, under Edward VI, it was given to Henry Grey, 1st Duke of Suffolk, the father of Lady Jane Grey. In 1554 it reverted to government use, housing the Ordnance Office and its stores, transferred there from the Tower of London. Some of the abbey buildings survived until their destruction by fire in 1797. In 1964 the coffin of Anne de Mowbray, 8th Countess of Norfolk, who died aged eight, was unearthed by chance at the abbey site, and later reburied in Westminster Abbey.