Duke of Westminster
William Grosvenor, 3rd Duke of Westminster (23 December 1894 – 22 February 1963), was the son of Lord Henry George Grosvenor and a grandson of Hugh Grosvenor, 1st Duke of Westminster. His mother, Dora Mina Erskine-Wemyss, was the daughter of James Erskine Wemyss, and a great-granddaughter of William IV.