[1] To conceal their adultery, Arthur and Angellica secretly send their child to be raised by Antonio, a Lincolnshire shepherd.
Arthur, who realizes that Tom is his son, sends his knights Lancelot, Tristram, and Triamour to bring him to court.
Tom woos the court with his feats of martial valor, culminating with his success in England's war against Portugal.
Back on the ship, Lancelot tells the tale of the great love between a young girl and prince Valentine of Greece.
At length the ship comes to Prester John's kingdom, where Tom defends the king against a dragon before making off with his daughter Anglitora, who subsequently gives birth to the Black Knight.