The Signoria of Venice (Serenissima Signoria) was the supreme body of government of the Republic of Venice. The oldest name, Commune Veneciarum, was replaced by Serenissima Signoria from 1423, being later officially adopted in the Promissione Ducale by Cristoforo Moro (12 May 1462).The Signoria ruled Venice for a thousand years.It constituted a centre of power which included the doge's power. The Signoria can be thought of as the combination of the Doge and the other persons commissioned to collaborate and to rule with him. With the passage of time these functionaries became copartners of this "Signoria Serenissima".