The Duke of Aosta is a title in the Italian nobility, historically associated with the House of Savoy. The title was first created in 1861 for Prince Amedeo, the second son of King Victor Emmanuel II of Italy. The Dukes of Aosta have played significant roles in Italian history, including military service and political involvement. The current holder of the title is Prince Aimone, who became the Duke of Aosta in 1948. The title is linked to the region of Aosta Valley in northwestern Italy, known for its stunning landscapes and rich cultural heritage. The dukedom has connections to various European royal families through marriage and alliances.