Ronald Ferguson Ronald Ferguson Major Ronald Ivor Ferguson (10 October 1931 – 16 March 2003) was the father of Sarah, Duchess of York, former wife to the Duke of York. He was the maternal grandfather of Princesses Beatrice and Eugenie of York. Major Ferguson was polo manager, initially to the Duke of Edinburgh and later, for many years, to the Prince of Wales. Ferguson was the son of Colonel Andrew Henry Ferguson (1899–1966) and his wife Marian Louisa Montagu Douglas Scott (1908–1996), a first cousin of Lady Alice Montagu Douglas Scott, who became (after her wedding to Prince Henry, Duke of Gloucester)
Louisa Hamilton, Duchess of Abercorn Louisa Hamilton, Duchess of Abercorn Louisa Jane Hamilton, Duchess of Abercorn, VA (née Lady Louisa Jane Russell) (8 July 1812 – 31 March 1905) was a member of the British aristocracy. She was the sister of Prime Minister John Russell, 1st Earl Russell, and among her descendants are two British princesses (Diana and Sarah) and Prince Richard, Duke of Gloucester. She was the wife of James Hamilton, 1st Duke of Abercorn, and the daughter of John Russell, 6th Duke of Bedford, by his second wife, Lady Georgiana Gordon. She was the mother of Louisa Montagu Douglas Scott, Duchess of Buccleuch,