Prince Gaston, Count of Eu

Gaston d'Orléans (28 April 1842 – 28 August 1922), the first son of Louis, Duke of Nemours, and Princess Victoria of Saxe-Coburg and Gotha. His full name was Louis Philippe Marie Ferdinand Gaston d'Orléans; Portuguese: Luís Filipe Maria Fernando Gastão de Orleães. He was a French prince and military commander who fought in the Spanish-Moroccan War and the Paraguayan War. Gaston was married to Princess Isabel, heiress to the Brazilian imperial throne.