The Bembo family was a noble Venetian family, part of the Venetian noble families of most ancient origins (the Longhi).

[2] Although there is no precise information about the origin of the Bembo (there are only late traditions with no historical foundation), the "pseudo-Giustinian" Chronicle of the 1350s lists them in a group of twelve families located just below the duodecim nobiliorum proles Venetiarum.

They were therefore one of the most important families already in ancient times, and maintained this prestige until the end of the Republic.

[3] The first records date back to the 10th century when they appeared in the public life of the Duchy of Venice giving some maggiorenti (the so-called "judges").

[4] However, it will be necessary to wait until the second half of the 13th century to see them fully active in public life.