Gaston was born on 28 April 1842 in Neully, France, the eldest son of Louis, the Duke of Nemours and Victoria of Saxe-Coburg-Kohary.
Gaston was born on 28 April 1842 in Neuilly-sur-Seine, France. He was the eldest son of Louis, the Duke of Nemours and Princess Victoria of Saxe-Coburg-Kohary.