She was born circa 1777. Her father was Gregorio Saenz, and her mother was Maria Margarita Gonzalez. Her father owned Porción 74, Mier. In 1782, she lived in Santa Albina / San Gregorio del Salero in household number 86. The church census recorded that she was a young child, española, and 5 years old. Her household included 10 people.
She married Jose Marcelino de la Garza, son of Francisco Angel de la Garza and Maria Cayetana Peña on 3 Feb 1791. She was 14 years old, and the groom was 27 years old. His father owned Porción 14, Mier.