William Beauclerk, 10th Duke of St Albans

William Amelius Aubrey de Vere Beauclerk, 10th Duke of St Albans (April 15 1840 – May 10 1898) was the son of William Beauclerk, 9th Duke of St Albans.

He married, firstly, Lady Sybil Mary Grey (28 November 1848-7 September 1871 London), granddaughter of Charles Grey, 2nd Earl Grey, on 20 June 1867 in London. They had three children:

*Lady Louise de Vere Beauclerk (12 April 1869-15 December 1958), married Gerald Loder, 1st Baron Wakehurst and had issue.
*Charles Victor Albert Aubrey de Vere Beauclerk, 11th Duke of St Albans (1870–1934)
*Lady Sybil Evelyn de Vere Beauclerk (21 August 1871-20 September 1910), married Major William Lascelles, great-grandson of Henry Lascelles, 2nd Earl of Harewood and had issue.

He married, secondly, Grace Bernal-Osborne (d. 18 November 1926 London), on 3 January 1874 in County Tipperary. Grace was the granddaughter of London Sephardic Jewish Shakespearian actor turned parliamentarian Ralph Bernal. Her father Ralph Bernal Jr., later Ralph Bernal Osborne, was Secretary of the Admiralty and a parliamentarian. Grace's mother was an Osborne, an Anglo-Irish landed family. They had five children:

*Osborne de Vere Beauclerk, 12th Duke of St Albans (1874–1964)
*Lady Moyra de Vere Beauclerk (20 January 1876-7 February 1942), married Lord Richard Cavendish, grandson of William Cavendish, 7th Duke of Devonshire and had issue.
*Lady Katherine de Vere Beauclerk (25 May 1877-1 February 1958), married, firstly, Henry Somerset, grandson of Henry Somerset, 8th Duke of Beaufort and secondly, Maj-Gen Sir William Lambton, son of George Lambton, 2nd Earl of Durham.
*Lady Alexandra de Vere Beauclerk (5 July 1878-16 April 1935), died unmarried.
*Lord William Huddlestone de Vere Beauclerk (16 August 1883-25 December 1954), died unmarried.