A hermit waits for the arrival of the crusaders. A man appears at the cave and asks the hermit how he may receive forgiveness for his past sins. The man is Pirro, who has become a confidante of Acciano and now controls the gates of Antioch. The hermit counsels Pirro that he will achieve forgiveness if he opens the gates to the approaching crusaders. Thereafter, the crusaders, led by Arvino, appear at the cave. The hermit learns that Arvino's daughter has been captured by Acciano. The hermit assures them that they will succeed in taking Antioch.