"Louis, Duke of Burgundy and later Dauphin of France (16 August 1682 – 18 February 1712) was the eldest son of Louis, Grand Dauphin, and father of Louis XV, and briefly heir-apparent to the throne from his father´s death in April 1711 to his own death 10 months later. Until he became the official Dauphin of France upon his father´s death in 1711, he was known as Le Petit Dauphin to distinguish him from his father, who was known as le Grand Dauphin." - (en.wikipedia.org 15.07.2020)
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