King Fernando asked the two princes to look for Don Juan. They found him in the kingdom of Armenia. They decided to live there. One day they found an interesting well. Only Don Juan went down inside successfuly. He found two lovely princesses, Donya Juana and Donya Leonora captive by a giant serpent. Because of his skills in fighting, the mighty prince has killed the serpent and saved the two princesses. Don Pedro envied the young prince. He cut the rope when the prince went down inside the well to get the ring Donya Leonora has forgotten. Anyway, it was easy for Don Diego to make Donya Juana to fall in love with him. So when they came back to Berbania, they married. On the other hand, Don Pedro did everything to pursue Donya Leonora but he failed.