Claudia, I'm still unclear as to your question.  I have a branch of
Rubalcabas in my ancestry, mostly from Yahualica but I think they originate
in Nochistlan, Zacatecas.  I know there is a town of Rubalcaba, south of
Santander, in Spain and I am guessing that I may one day learn that they
originate there.  Rubalcaba is a prominant name in Yahualica.  But then
again, I have an Avila line that I thought might originate in Avila, Spain,
 but dna results indicate that it is an Native American line....
