On the death of her niece
Elizabeth Grey, Viscountess Lisle (1505–1519), the daughter of her brother
John Grey, 2nd Viscount Lisle (1481–1504) by his wife Muriel Howard, the
barony of Lisle passed to Elizabeth, who thereby became
suo jure Baroness Lisle. Her husband
Arthur Plantagenet was created
Viscount Lisle on 25 April 1523. He continued to hold the title after her death in 1525 or 1526. After Arthur Plantagenet's death in 1542, Henry VIII granted the viscountcy to Elizabeth Grey's eldest son by her first marriage,
John Dudley, 1st Viscount Lisle, "by the right of his mother". He was created Viscount Lisle on 12 March 1542, and was later created
Duke of Northumberland. He forfeited his titles upon his execution and attainder in 1553. ==Notes==