During reign of king: George III Occurred: 1811-1820 By next king: George IV (son of George III)
George III became mad and, while still king, his duties were taken over by his son Prince George (later George IV) who became Prince Regent.
In 1789, the French Revolution had cause France to be become a republic. Napoleon then came to power, and became emperor (see right). Britain went to war with France in 1803. The Battle of Trafalgar in 1805 won by Nelson meant that Britain kept control of the seas, and in 1815, Napoleon was beaten by the Duke of Wellington.