Loredana Marcello became Dogaressa of Venice when her husband Alvise I Mocenigo was elected Doge on 15 May 1570.
On 15 May 1570, the Venetian patrician Alvise I Mocenigo was elected Doge of the Republic of Venice by the city's electoral council, a position that placed him at the head of one of Europe's most powerful maritime states. By virtue of this election, his wife, Loredana Marcello, automatically assumed the ceremonial title and role of Dogaressa, the consort of the Doge.
The office of Dogaressa, while lacking formal political power, carried significant symbolic and social weight within the highly ritualized structure of the Venetian state. Dogaressas participated in state ceremonies, religious processions, and diplomatic receptions, embodying the dignity of the Republic alongside their husbands. Loredana, herself a member of the illustrious Marcello family—one of Venice's oldest patrician houses that had already produced doges and prominent statesmen—brought considerable social prestige to the union.
Her tenure began at a moment of tension for Venice, as the Republic was soon drawn into conflict with the Ottoman Empire, culminating in the loss of Cyprus and the Battle of Lepanto in 1571. As Dogaressa, Loredana would have overseen ceremonial and charitable duties expected of the office during this turbulent period, representing continuity and stability for the Venetian elite even as war reshaped the Mediterranean balance of power.