Oliver Sylvain Baliol Brett, 3rd Viscount Esher, (23 March 1881 – 8 October 1963) was a British peer and politician.
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Early life
Brett was the elder son of the Liberal courtier and politician Reginald Brett, 2nd Viscount Esher, the Governor of Windsor Castle, and Eleanor Van de Weyer, daughter of Belgian ambassador Sylvain Van de Weyer and grand-daughter of Anglo-American financier Joshua Bates. His siblings included Maurice Vyner Baliol Brett, who married the famous musical theatre actress Zena Dare; Dorothy, who was a painter and member of the Bloomsbury Group; and Sylvia, who became the last Ranee of Sarawak on 24 May 1917, following the proclamation of her husband Charles Vyner Brooke as Rajah.
He was educated at Eton. Brett was a friend of his eventual wife's brother, G. Maurice Heckscher.
Career
He was an unpaid private secretary to Lord Morley, the Secretary of State for India, from 1905 to 1910. In the January and December 1910 elections he unsuccessfully stood for Huntingdon as a Liberal. In 1914, he joined the 1/16th (County of London) Battalion (Queen's Westminster Rifles), and was attached to the War Office. For his wartime service he was appointed a Member of the Order of the British Empire (Military Division) in 1918.



