Original: John Stuart, 3rd Earl of Bute, KG, PC (25 May 1713   10 March 1792), styled Lord Mount Stuart before 1723,  was a Scottish nobleman who served as Prime Minister of Great Britain (1762 1763) under George III, and was arguably the last important favourite in British politics.
Simplified: John Stuart, 3rd Earl of Bute, KG, PC (25 May 1713 - 10 March 1792)  was a Scottish nobleman.