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".
The Signoria of Venice was constituted of:
The Doge (from Latin dux - leader) was the chief magistrate in the republics of Venice (until 1797) and Genoa (until 1805).
The Signoria was considered a very important body of government, more important than the Doge himself. The sentence si è morto il Doge, no la Signoria (The Doge is dead, but not the Signoria) was ritually said during the ceremonies set for the death of the Doge.