Doge of Venice
The Doge of Venice (/doʊdʒ/ DOHJ)[2][a] was the highest role of authority within the Republic of Venice (697 CE to 1797 CE).[3] The word Doge derives from the Latin Dux, meaning "leader," originally referring to any military leader, becoming in the Late Roman Empire the title for a leader of an expeditionary force formed by detachments (vexillationes) from the frontier army (limitanei), separate from, but subject to, the governor of a province, authorized to conduct operations beyond provincial boundaries.
The Doge of Venice acted as both the head of state and head of the Venetian oligarchy. Doges were elected for life through a complex voting process.[4]
HistoryByzantine era…..
https://en.wikipedia.org/wiki/Doge_of_Venice
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