Transport of the body of Saint Mark from Alexandria, Egypt to Venice (Doge Giustiniano Partecipazio)

The church was burned during the revolt against Doge Candiano IV and its reconstruction under Doge Orseolo I the Saint

Beginning of the mosaic decoration (Doge Domenico Selvo)

Fourth Crusade and transport to the basilica of marbles and works of art brought to Venice following the conquest of Constantinople (four horses, icon of the Madonna Nicopeia, enamels from the Pala d'Oro, reliquaries, crosses, chalices, patens, today in the treasury: Doge Enrico Dandolo)

Construction of the Baptistery and the Chapel of Sant'Isidoro (Doge Andrea Dandolo)

Gothic decoration of the facade with cusps, aedicules, sculptures of angels and saints

Intervention of Tuscan artists (Maestro Nicolò and Pietro Lamberti and perhaps Jacopo della Quercia) in the sculptures of the facade: Florentine artists in the mosaics of the basilica (Paolo Uccello is documented in 1425

Construction of the Sacristy next to the apse (followed by the reconstruction of the small church of San Teodoro by Giorgio Spavento, proto of the basilica)

Construction of the Zen Chapel in the right arm of the atrium, a construction which blocked the solemn entrance portal towards the lagoon;

Arrangement of the altar of Nicopeia and the altar of the Blessed Sacrament (to the left and right of the main altar)

The Basilica becomes the seat of the Patriarch of Venice, until then at San Pietro a Castello