I did not see the previous message you mentioned.
It would appear we are related thru the seventh generation you have listed in your tree, our last common ancestors being Lorenza Ruiz de Esparza y Gabay and Captain Luis Tiscareno de Molina Y Marquez.
It has been hard to pin down Petronila Moctezuma precisely, I believe, because we don't have her entire name. Surely she had several first and last names as did virtually all of her contemporaries, including her older and more well documented siblings.
I do have the marriage record by Jaime Holcombe you referenced.
There are several family trees here on Ancestry.com that mention Petronila, unfortunately some are private and so not available for comparison with our results. If everyone shared what they had we might be able to fill in some blanks.
I wish we could get that Aussie woman, Anna Layton, who investigated La Malinche to do the same for Petronila.email@example.com
Check out my maternal (Rodriguez, Contreras, Montoya, Acosta, Porras, Vasquez, Serecedes, Cobos, Corral, Olguin, Gallardo, Robeldo, Najera, Suares, Caballero, Gutierrez, Caro, Aranda) home page:http://www.genealogy.com/users/a/l/d/Ernie-Alderete-Monterey...
And my paternal (Romo, Ramirez, Gonzales, Rangel, Moctezuma homepage:http://www.genealogy.com/users/a/l/d/Ernie-Alderete/
My Moctezuma DNA Project:http://www.familytreedna.com/public/moctezuma
My Alderete DNA Project:http://www.familytreedna.com/(hcojjivgekjvu155hef2gy55)/publ...
My Moctezuma Forum:http://forums.delphiforums.com/moctezuma1