{{Infobox royalty| name = George III| image = Allan Ramsay - King George III in coronation robes - Google Art Project.jpg| caption = Coronation portrait by Allan Ramsay, 1762| alt = Full-length portrait in oils of a clean-shaven young George in eighteenth century dress: gold jacket and breeches, ermine cloak, powdered wig, white stockings, and buckled shoes.| reign = 25 October 1760 – 29 January 1820| coronation = 22 September 1761| cor-type = britain| succession = {{plainlist|*King of Great Britain and Ireland{{efn|name=note 1|King of the United Kingdom from 1 January 1801 onwards, following the Acts of Union 1800.}}*Elector of Hanover{{efn|name=note 2|King of Hanover from 12 October 1814 onwards.}}}}