You're missing the point. Corisca was (and always had been) a part of Italy before it was given to France for money only. Genetically their closest to Italians from Genoa. Regarding Napolean, his family was originally from Genoa and Florence Italy. The Buonaparte family tomb lies in the Church of San Francesco in San Miniato (Florence Italy). He also changed his last name from "Buona"parte (Italian) to "Bona"parte to sound more French.