On this day, June 4 in 1738, George III was born.

He was the king of Great Britain and Ireland (1760–1820) and elector (1760–1814) and then king (1814–20) of Hanover, during a period when Britain won an empire in the Seven Years’ War but lost its American colonies and then, after the struggle against Revolutionary and Napoleonic France, emerged as a leading power in Europe.

During the last years of his life (from 1811) he was intermittently mad, and his son, the future George IV, acted as regent. https://www.britannica.com/biography/George-III