During this ruler's reign, the Gordon riots broke out to protest the first Act for Catholic Relief. Britain ended its transatlantic slave trade during the reign of this king, 
During this ruler's reign, the Gordon riots broke out to protest the first Act for Catholic Relief. Britain ended its transatlantic slave trade during the reign of this king, who signed the one-year Peace of Amiens with France. His prime ministers included Lord North and both William Pitt the Elder and Younger. During his last decade of rule, his son served as Regent because this ruler went insane, possibly due to porphyria. In 1765, he levied the Stamp Act on the American colonies. For 10 points, name this British monarch who ruled during the American Revolution.
During this ruler's reign, the Gordon riots broke out to protest the first Act for Catholic Relief.
George III Hanover [or George William Frederick; prompt on George]