The Arbuthnot baronetcy of Kittybrewster in Aberdeenshire was created in the Baronetage of the United Kingdom on 26 February 1964 for John Sinclair Wemyss Arbuthnot, for services to church and state. As of , the baronetcy is marked vacant on the Official Roll.
Arbuthnot baronets of Kittybrewster (1964) Sir John Sinclair Wemyss Arbuthnot, 1st Baronet (1912–1992) Sir William Reierson Arbuthnot, 2nd Baronet (1950–2021).The Times – Births, marriages and deaths: November 9, 2021 He was educated at Eton and College of Law, London, then worked as a lawyer including for Joynson-Hicks & Co; in 2010, he married Louise Alexandra Mary, daughter of (Edward) Bruce Barry (1928–1995), and was father of the 3rd Baronet and his twin brother, the heir presumptive. He also had a daughter from a previous relationship.Burke's Peerage, Baronetage and Knightage, 107th edition, vol. 1, ed. Charles Mosley, Burke's Peerage Ltd, 2003, p. 125Debrett's Peerage and Baronetage 2019, ed. Susan Morris, Debrett's Ltd, 2019, p. 2051 Sir Henry William Arbuthnot, 3rd Baronet (b. 2011) does not appear on the Official Roll.
Coat of arms
Major Sir John Sinclair-Wemyss Arbuthnot, of Kittybrewster, 1st Baronet (1912—1992) Sir William Reierson Arbuthnot, 2nd Baronet (1950–2021) Sir Henry William Arbuthnot, 3rd Baronet (born 2011) (1) John Walter Arbuthnot (b. 2011) (2) Rt. Hon. James Norwich Arbuthnot, Baron Arbuthnot of Edrom (b. 1952) (3) Hon. Alexander Broadbent Arbuthnot (b. 1986)
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