Edward II, son of Edward I, was the English king who reigned from 1307 to 1327, remembered for his tumultuous rule and military failures.
Charles VI, the Mad, was a King of France whose reign was marked by mental illness and political turmoil.
Frederick William III was the King of Prussia from 1797 to 1840, leading the nation through the tumultuous Napoleonic Wars and initiating significant administrative and social reforms.