Her father was Lazaro de la Garza Falcon, and her mother was Petronila de Montemayor.
She married Fernando Cantu, son of Geronimo Cantu and Juliana de Treviño. It was his second marriage.
Maria Cantu. In 1728, she requested a dispensation to marry Cristobal de Villarreal, son of Francisco de Villarreal and Ursula de Izaguirre.
Clara Cantu. She married Blas Garcia. In 1728, she requested a dispensation to marry Miguel de Villarreal, son of Cristobal de Villarreal and Micaela de Treviño.
Maria Gertrudis Cantu. In 1735, she requested a dispensation to marry Francisco Miguel Davila, son of Francisco Antonio Davila and Rosa Maria Montemayor.