King George III of the United Kingdom
From British Museum: "Born 4 June 1738, son of Frederick, Prince of Wales (q.v.); succeeded his grandfather, George II (q.v.) on 25 October 1760; married Sophia Charlotte of Mecklenburg-Strelitz (q.v.) on 8 September 1761; crowned 22 September 1761."
We have 3 objects that King George III of the United Kingdom has been involved with.