She was born circa 1751 in Valle de Salinas. Her father was Geronimo Rodriguez, and her mother was Maria Isabel Saldivar. Her father owned Mier 24 grant.
She married Jose Antonio Tanguma on 12 Jul 1773 in Mier. She was 22 years old, and the groom was 33 years old. The priest recorded her race as española. It was his second marriage.