She was born circa 1762. Her father was Juan de la Garza, and her mother was Maria Gertrudis Chapa. Her father owned land in Porción 23, Mier. In 1782, she lived in San Nicolas/ Santa Rosalia de la Bonita in household number 139. The church census recorded that she was an unmarried girl, española, and 20 years old. Her household included 8 people.
She married Juan Jose Saenz, son of Marcelino Saenz and Margarita Almaraz on 3 Mar 1783 in Mier. She was 21 years old, and the groom was 17 years old. His father owned land in Porción 25, Mier.