I'm sorry to break the news to all Exposito's out there, but the story behind the Exposito name is that it's a bastard name. It is or was used in Europe to name orphans. In Italy, the orphans are named Esposito. In Spain and France they are named Exposito. As for myself, my great grandfather went to Cuba as a Spanish soldier during the Spanish-American War and stayed after the war to marry a local Cuban girl. the rest is history...