Muñoz y Martinez de Orozco

Ventura Muñoz and Rita Martinez de Orozco fathers of Santiago Muñoz married with Andrea Solís.
This two couple were in Villa de Cos, Zacatecas from 1755 to 1815.

I found at the same years in the same town a marriage (1766) between Anacleto Apolinario Martinez de Orozco y Maria del Refugio Muñoz Marquez. She says born in Charcas, SLP. The parents of Anacleto were "padrinos" in a baptism of a son of Ventura.

Do we are in front of two brothers married with two brothers? Does somebody knows this family? Refugio says she is a daughter from Nicolas Muñoz and Manuela Gertrudis Marquez. The Parents of Anacleto are Juana de Betancourt and Eugenio Martinez de Orozco "padrinos" of baptism to Maria Estefana Muñoz Orozco a daughter of Ventura y Rita in 1777.
This is my Munoz lineage. I´m looking for the Ventura parents.
Thanks.