He succeeded his father as chief of Clan Johnstone in 1983 , and his claim to an earldom was recognized three years later .
Patrick Andrew Wentworth Hope - Johnstone , 11th Earl of Annandale and Hartfell ( born 19 April 1941 ) , is a Scottish peer .
Patrick Andrew Wentworth Hope - Johnstone succeeded Patrick Andrew Wentworth Hope - Johnstone 's father as chief of Clan Johnstone in 1983 , and his claim to an earldom was recognized three years later .
Patrick Andrew Wentworth Hope - Johnstone , 11th Earl of Annandale and Hartfell ( born 19 April 1941 ) , is a Scottish peer .