Where were the doges of Venice buried? A little bit all over, in churches and monasteries in Venice and beyond.
The Venetian state was always an ad hoc construct, and institutions came and went at the convenience of the ruling elite.
“Doge” from the L’Archivio di Stato di Venezia: indice generale, storico, descrittivo ed analitico (1937) by Andrea da Mosto
The complete list of the 120 Doges of Venice from Paoluccio Anafesto in 697 to Ludovico Manin in 1797