Mezzotint of King George III as Prince of Wales in 1751George III (George William Frederick; 4 June 1738 – 29 January 1820) was King of Great Britain and King of Ireland from 25 October 1760 until the union of these 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
King George I was German down to his bone marrow. He grew up fully immersed in and proud of his Teutonic roots. He never learned English while King and spent as much time as he could in his native Hanover. By the time he came to the throne his heir, the future George II, was already married to a German, and George II's own heir was also later paired with a German princess.