King George III

George III (June 4, 1738 – January 29, 1820) was King of Great Britain and King of Ireland from October 25, 1760 until the union of these two countries on January 1, 1801, after which he was King of the United Kingdom of Great Britain and Ireland until his death.

Background
....... American Revolution .......

He was the answer of a question at the National Archives' pop quiz terminals.

Appearances
George III is mentioned only in Fallout 3.