Greetings, JohnnyPJ! It appears that you and my wife are distantly related as she descends from the Ruiz de Esparzas, Romo de Vivars and the Escaleras back to old Moctezuma himself. I have been given reason to believe that the Leonor de Moctezuma who married Cristobal de Valderrama may have been Moctezuma's daughter by another woman and thus half-sister to Isabel. Of course, Isabel de Moctezuma had a daughter named Leonor with Hernando Cortez which seems to cause some confusion. I wonder if you have proof of the connection of our Leonor as daughter to Princess Isabel?