Who was the King of England 200 years ago?

There was no king of England 200 years ago. After the Acts of Union in 1706/1707 the Monarchs were King (or Queen) of Great Britain. From 1801 until 1927, they were monarchs of the United Kingdom of Great Britain and Ireland.From 1760 to 1830 the King was George IIIFrom 1830 to 1837 the King was William IVAfte that the Queen was Victoria