The Olivolo island was one of the most ancient settlements, which became Venice, and the seat of the Bishops of Venice since 774.
The doges Deusdedit (742-755), Galla (755–756), Domenico Monegario (756–764), Maurizio Galbaio (764–787) and his son Giovanni (787–804), from the “Istoria Veneticorum” by John the Deacon.
Translation of the parts related to Venice of the “De Administrando Imperio” (c.950) by Constantine VII Porphyrogenitus.