In 742 the capital had been moved from Eraclea to Metamauco and then, in 812, the Doge Agnello Perticiago moved the capital to the small islands of Rialto for security motives.
Construction was started on his residence on the Canal Grande, a kind of fortress whose original nucleus later developed into what we now call the Doge’s Palace.
The same year the first Venetian currency was coined: the silver dinar.