She was born circa 1758. Her father was Marcelino Saenz, and her mother was Margarita Almaraz. Her father owned Mier 25 grant.
She married Jose Damian de la Garza, son of Juan de la Garza and Maria Gertrudis Chapa on 29 May 1774 in Camargo. She was 16 years old, and the groom was 20 years old. His father owned Mier 23 grant.
Maria Dolores de la Garza, born 1778.
Maria Gertrudis de la Garza, born 1781.
In 1782, she lived in San Nicolas/ Santa Rosalia de la Bonita in household number 138. The church census recorded that she was married, española, and 24 years old. Her household included 4 people:
Jose Damian de la Garza, married, español, age 28.
Maria Rosalia Saenz, married, española, age 24.
Maria Dolores de la Garza, a young child, española, age 4.
Maria Gertrudis de la Garza, a young child, española, age 1.