(1848–1939) and Sylvain's daughter Louise (died 1896), by
James Valentine (1815–1879), circa 1866–1870. On 12 February 1839, he married Elizabeth Anne Sturgis Bates (1817–1878), the only daughter of
Joshua Bates of
Barings Bank, and formerly of Boston. She had a brother, William Rufus Gray Bates, who died at a young age. Together, they had two sons and five daughters, who were brought up in
Marylebone and on their country estate, New Lodge, in the parish of
Winkfield in
Berkshire: • Lt. Colonel Victor William Bates Van de Weyer (1839–1915), educated at
Eton, married to Lady Emily Georgiana (1846–1932), daughter of
William Craven, 2nd Earl of Craven. married to
Henry Brand, 2nd Viscount Hampden (1841–1906) on 21 January 1864. • Albert Sylvain Bates Van de Weyer (1845–1874), an Adjutant in the
Grenadier Guards. daughter of
Queen Victoria. • Alice Emma Sturgis Van de Weyer (1856–1926), who married Maj. Hon. Charles Brand (1855–1912), fourth son of
Henry Brand, 1st Viscount Hampden, on 15 August 1878. Van de Weyer died on 23 May 1874 in
London, England.
Descendants Through his son Victor, he was the grandfather of Major
William John Bates van de Weyer (1870–1946), who was responsible for
Buddleja × weyeriana. William married Hon. Olive Elizabeth Wingfield, eldest daughter of
Mervyn Wingfield, 7th Viscount Powerscourt. Through his daughter Alice, he was the grandfather of Ruth Brand (d. 1967), who married
John Dodson, 2nd Baron Monk Bretton (parents of
John Dodson, 3rd Baron Monk Bretton); Lt.-Col. John Charles Brand (1885–1929), who married Lady Rosabelle Millicent St. Clair-Erskine, the daughter of
James St Clair-Erskine, 5th Earl of Rosslyn. Through his youngest daughter, he was the grandfather of
Oliver Sylvain Baliol Brett, 3rd Viscount Esher (1881–1963); Maurice Vyner Baliol Brett (1882–1934), who married the famous
musical theatre actress
Zena Dare;
Dorothy Brett (1883–1977), who was a painter and member of the
Bloomsbury Group; and
Sylvia Brett (1885–1971), who became the last Ranee of
Sarawak on 24 May 1917, following the proclamation of her husband
Charles Vyner Brooke as
Rajah. == Honours and arms ==