Moctezuma's daughter

I am very interested in this information.  I have worked on my Femat tree that brought me to Monica Romo de Vivar.  Going through her line I came across some of this information but I became confused at Diego Romo de Vivar as there are so many with the same name and some brothers married the same woman.  I was very confused.  I am very happy to see some information on that line.  I just hope someone can help me connect the Romo de Vivar line.