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
David Stewart, Earl of Strathearn also given the title Earl of Caithness between that date and 28 December 1377, when he was styled "Earl Palatine of Strathearn and Caithness". He was involved in a major dispute with his older half-brother, Alexander Stewart, Earl of Buchan, who by 1385 had occupied his castle at Urquhart. It is uncertain, but it is highly likely that he died in March 1386, and no later than 1389. His wife appears to have been a daughter of Sir Alexander Lindsay of Glenesk, and sister of David Lindsay, 1st Earl of Crawford. They had a daughter, Euphemia, who succeeded to the