Prince Aimone Roberto Margherita Maria Giuseppe Torino of Savoy-Aosta was born in Turin the second son of Prince Emanuele Filiberto, Duke of Aosta (eldest son of Prince Amedeo, 1st Duke of Aosta (and sometime "King Amadeo I of Spain") by his wife, née Vittoria dal Pozzo, Principessa della Cisterna) and Princess Hélène of Orléans (daughter of Philippe, comte de Paris, and Princess Marie Isabelle of Orléans).