Louis, Duke of Brittany (born 1704)

Louis, Duke of Brittany (25 June 1704 – 13 April 1705) was the eldest son and the only infant son of Louis, Duke of Burgundy and Princess Marie Adélaïde of Savoy, grandson of Louis, Grand Dauphin, and great-grandson of Louis XIV. For his entire life, Louis was third in line of succession to the throne behind his father and grandfather. As the grandson of the Dauphin, he was a petit-fils de France. He was styled Duke of Brittany, the first to hold the title since Henry II, nearly 200 years prior. He was placed in the care of the royal governess Louise de Prie.

Louis had two younger brothers : Louis (1707–1712) and Louis (1710–1774), the latter of whom became king Louis XV in 1715.