The family tree lineage I have has a Francisco Javier de Pedroza. He is the son of Antonio de Pedroza and Rosa María Macías Valadez. His profile can be reached by this link http://www.wikitree.com/wiki/De_Pedroza-39 and it should be able to show the farthest known de Pedroza ancestor which is Santiago de Pedroza who married Juana Bautista de Alva.
Hope this helps! Let me know.
The Francisco de Pedroza that you referenced with a Wikitree profile is the son of Santiago de Pedroza and María de la Cruz Martín