The Loredan are a patrician family of Venice, dating back to the 12th century and occupying hereditary seats on the Great Council since the Serrata del Maggior Consiglio of 1297. A legend, more than facts, traced them back to the Mainardi family. The name is said to derive from Laureati, Lauretani because of their ancestors' historical glory. The branch of Santo Stefano, Venice ended with Andrea di Girolamo Loredan in 1750. The branch of San Vio (with the Palazzo Loredan Cini at Campo San Vio) still exists today.
Alvise Loredan (1393-1466) was a Venetian politician and commander of the fleet.
Giacomo (Jacobus) Loredan, 1396-1471, was elected Procuratore di San Marco de Citra in 1467. 
Admiral Pietro Loredan (died 1439), a famous member of the family, achieved two great victories, against the two rivals for power in the Mediterranean: over the Ottoman Turks at the Battle of Gallipoli in June 1416, and over the Republic of Genoa near Rapallo in 1431. His attempt at being elected Doge of Venice was unsuccessful in 1423: he was defeated by his lifelong rival Francesco Foscari. Loredan was named general of the republic in 1436 during a war with Mantua and was elected generalissimo in 1438, and was assassinated the following year.
Pietro Loredan was appointed captain of two Venetian galleys by Doge Nicolò Marcello in 1473-74.
Tommaso Loredan was given a commission as captain of two Venetian galleys in 1490 by Doge Augustino Barbarigo.
Further politicians were Giacomo Loredan (1396-1471), Giorgio Loredan (before 1404-1475), Antonio Loredan (1446-1514), Marco Loredan (1489-1557), Giovan Francesco Loredan (1607-1661), Francesco Loredan (1656-1715), ambassador to Vienna.
The family contributed three Doges: Leonardo Loredan (1501-1521), Pietro Loredan (1567-1570), and Francesco Loredan (1752-1762), of whom only the first truly set his mark on the history of Venice; the Portrait of Doge Leonardo Loredan by Giovanni Bellini (1501) makes his face familiar still.
Doge Francesco Loredan (1752-1762)
The great collector in the family was Andrea Loredan who constructed a palazzo on the Cannaregio to designs by Mauro Codussi; it was paid for by Doge Leonardo Loredan; it was bought in the eighteenth century by the Vendramin, and as the Ca' Loredan Vendramin Calergi is notable today for its association with Richard Wagner. The Palazzo Giustinian Loredan is still today owned by the family.
In the terraferma there are numerous Villas Loredan -- at Strà on the Brenta Canal; at Paese, near Treviso, the villa painted by Francesco Guardi; at Asolo; at Sant'Urbano, near Padua. The domain of the Villa Loredan at Paese was planted with grapevines in the 1950s by Conte Pietro Loredan; the wine continues to be made under the label Conte Loredan Gasparini.
Ca' Vendramin Calergi on the Grand Canal, built for Andrea Loredan
In 1534, Venice ceded the town of Barban to the Loredan family, which had acquired it in an auction, as a heritable possession. The family made it their summer residence.