The title "Duke of Genoa" is a noble rank historically associated with the city of Genoa, Italy. It was established in the Middle Ages and often held by prominent families who played significant roles in the political and economic life of the region. The title became particularly notable during the time of the Republic of Genoa, which was a powerful maritime republic. In the 19th century, the title was revived and became associated with the Italian royal family, specifically the House of Savoy. The Duke of Genoa was often a title given to a younger son of the king, symbolizing the family's connection to the city and its historical importance in Italy.