Louis XV was king of France from 1715 to 1774. He was nicknamed `the Well-Beloved?, but his failures contributed to the crisis that caused the French Revolution. Born in Versailles he succeeded to the throne at the age of five. He ruled during the Seven Years War (1756-63) when France lost of most of her colonies to Britain. The extravagances of Louis?s court, the huge expense of decades of warfare and the defeat of attempts to reform left the monarchy and government weakened by the end of his reign. He was succeeded by his son, Louis XVI, who was executed by guillotine in 1793 during the French Revolution.