Around 1500, Bembo and Baldassare Castiglione were in charge of the Assassin hideout on Tiber Island while Niccolò Machiavelli was away. It was during this time that Ezio Auditore da Firenze remarked they were very reliable Assassins and valuable additions to the Brotherhood, because both of them had connections with the Borgia. Bembo soon had to return to Venice, supporting the Assassins' cause there.
- Assassin's Creed: Brotherhood (mentioned in Database entry only)
- Brotherhood novel (first appearance)