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 Iddesleigh Viscount St Cyres, of Newton Saint Cyres in the County of Devon, at the same time he was given the earldom. This title is also in the Peerage of the United Kingdom. He was succeeded by his eldest son, the second Earl. He notably served as Chairman of the Board of Inland Revenue. On his death the titles passed to his nephew, the third Earl. He was the youngest son of Reverend the Hon. John Stafford Northcote, third son of the first Earl. His eldest son, the fourth Earl, served as a Deputy Lieutenant of Devon. the titles are held