Her father was Juan Perez de la Garza, and her mother was Maria Cantu.
She married Gabriel Cavazos, son of Joseph Cavazos and Jacinta de la Cerda (Fernandez de Castro).
Maria Gertrudis Cavazos. She married Pedro Rodriguez de Montemayor, son of Miguel Rodriguez de Montemayor and Josefa de la Garza. In 1749, she requested a dispensation to marry Blas Joseph de Treviño, son of Miguel de Treviño and Isabel de Ochoa.
Antonia Margarita Cavazos. In 1748, she requested a dispensation to marry Miguel Cayetano Rodriguez, son of Miguel Rodriguez de Montemayor and Josefa de la Garza.