This man was the Deputy Earl Marshal to the third British monarch of the House of Hanover.
George III of the United Kingdom George III (George William Frederick; 4 June 1738 – 29 January 1820) was King of Great Britain and Ireland from 25 October 1760 until the union of the two countries on 1 January 1801, after which he was King of the United Kingdom of Great Britain and Ireland until his death. He was concurrently Duke and prince-elector of Brunswick-Lüneburg ("Hanover") in the Holy Roman Empire until his promotion to King of Hanover on 12 October 1814. He was the third British monarch of the House of Hanover, but unlike his two predecessors, he was born in Britain, spoke English as his first language, and never visited Hanover.
John Stuart, 3rd Earl of Bute John Stuart, 3rd Earl of Bute, ( ; 25 May 1713 – 10 March 1792) was a Scottish nobleman who served as Prime Minister of Great Britain (1762–1763) under George III. He was arguably the last important favourite in British politics. He was the first Prime Minister from Scotland following the Acts of Union in 1707 and the first Tory to have held the office.