Louis XV of France
Louis XV (15 February 1710 – 10 May 1774), known as Louis the Beloved (), was a monarch of the House of Bourbon who ruled as King of France from 1 September 1715 until his death in 1774. He succeeded his great-grandfather Louis XIV at the age of five. Until he reached maturity (then defined as his 13th birthday) on 15 February 1723, the kingdom was ruled by Philippe II, Duke of Orléans, as Regent of France.
Cardinal Fleury was his chief minister from 1726 until the Cardinal's death in 1743, at which time the young king took sole control of the kingdom.
Louis, Dauphin of France (son of Louis XV)
Louis, Dauphin of France (4 September 1729 – 20 December 1765) was the elder and only son of King Louis XV of France and his wife, Queen Marie Leszczyńska to survive to adulthood. He had a younger brother, Philippe, who died as a toddler. As a son of the king, Louis was a "fils de France". As heir apparent, he became Dauphin of France. However, he died before ascending to the throne. Three of his sons became kings of France: Louis XVI (reign: 1774–1792), Louis XVIII (reign: 1814–1815; 1815–1824) and Charles X (reign: 1824–1830).