Not as much as he would have had you believe. In 19th century, Parliament were making the laws and effectively governing the country. The King, of course had regular audiences with the incumbent Prime Minister, and the King's opinions would have been made known.
Although the sovereign was largely removed from the political arena, his wishes were always viewed as commands, and he was still the figurehead on ceremonial occasions. He was not unhappy with this, as he was overfond of huge banquets (at the State's expense) and gambling (horses mostly) - and assorted mistresses.
His Grandson King George III.
King George IV was on the throne before King William IV.
George IV
King George IV of the United Kingdom was born on August 12, 1762.
George IV was the king of great Britain and Ireland from 1820 to 1830
His Son George IV.
king George the iv or the 3
King George IV of the United Kingdom was born on August 12, 1762.
George IV was king of England from29 January 1820 –26 June 1830.
George IV
King George IV
King George IV of Great Britain and Ireland was born at St James' Palace in London England.