Earl of Salisbury children: to his son Edward in 1485 until his execution for treason in 1499, and to Edward's sister, Margaret Pole, Countess of Salisbury, in 1513 until she was also executed, and the title again forfeited, in 1539. In 1605 the title was given to Robert Cecil, 1st Earl of Salisbury, a close advisor to James I. Cecil was a son of Queen Elizabeth I's chief advisor, William Cecil, 1st Baron Burghley. For information on this creation, see the Marquess of Salisbury. Some sources call Edward Plantagenet, 17th Earl of Warwick (1475–1499) also Earl of Salisbury, but "there is no reason
Earl of Tyrone eldest son of his second wife, as Baron Dungannon; Earl Hugh's first marriage was invalid, and his children by that marriage illegitimate. The following men were known as Baron Dungannon: Since the younger Hugh O'Neill was attainted with father in 1608, the title is forfeit, and is now extinct. Young Hugh went to Rome with his father, and died there in the summer of 1609. Earl Hugh and his family continued to lead the O'Neills of Tyrone from abroad; they also had the title of Earl of Tyrone recognized in Spain in the form of Conde de Tyrone. "Though no