Covarrubias

Hello my Nuestros Ranchos Family, I need help finding the parents of Francisco Xavier Covarrubias who was married to Ysabel Avila 30 May 1770 in Tlaltenango. He was married previously to Getrudis Zaldana. I suspect his parents were Augustin Covarrubias and Ana Peres de Texeda, but not sure, need Proof. I have checked the baptismals and the marriage information only goes up to Feb 1770.

Help!
Many thanks, Lisa