Doge (title)
A doge (/doʊdʒ/ DOHJ, Italian: [ˈdɔːdʒe]; plural dogi or doges; see below) was an elected lord and head of state in several Italian city-states, notably Venice and Genoa, during the medieval and Renaissance periods. Such states were referred to as crowned republics. Doges wore a special hat, the Corno ducale and usually ruled life-long.
The office of the doge in English is termed a dogeship.