<P> 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 in 1820 . He was concurrently Duke and prince - elector of Brunswick - Lüneburg ( `` Hanover '' ) in the Holy Roman Empire before becoming 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 Great Britain , spoke English as his first language , and never visited Hanover . </P>
<P> 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 in 1820 . He was concurrently Duke and prince - elector of Brunswick - Lüneburg ( `` Hanover '' ) in the Holy Roman Empire before becoming 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 Great Britain , spoke English as his first language , and never visited Hanover . </P>
who was on the english throne in 1789
who was on the english throne in 1789
George III
George III