 In 1820 the estates passed to a cousin of the eighteenth Haldane of Gleneagles, Admiral Adam Duncan, Viscount Duncan of Camperdown, who was renowned for his victory at the Battle of Camperdown in 1797.The Admiral's son assumed the surname of Haldane and was raised to the title of Earl of Camperdown in 1831.The fourth Earl of Camperdown resigned his estates to his kinsman, James Chinnery-Haldane in 1918.