User blog comment:TranquilTempest/Perotto Calderon's Son...../@comment-75.33.39.69-20101120133112

Well, we do know at least that Perotto and his son are both members of the same Assassin bloodline as Ezio, seeing that Perotto was skilled and powerful enough to take on a very large group of Assassins and hold his own for a while. Also, his son has eagle vision.