Madeleine Stone on the balcony of the Doges Palace Venice looking down on Piazza San Marco (St. Marks Square). The title "doge" was the title of the senior-most elected official and magistrate of Venice. The Doge's Palace (Palazzo Ducale) is built in Venetian Gothic style, and is one of the main landmarks of Venice. The palace was the residence of the Doge of Venice, the supreme authority of the former Republic of Venice. It was built in 1340 and extended and modified in the following centuries. It became a museum in 1923.