She was born circa 1604. Her father was Bernabe de las Casas, and her mother was Maria Beatriz Navarro Rodriguez.
She married Diego de Villarreal, son of Francisco de Villarreal.
Cristobal de Villarreal. He married Micaela de Treviño, daughter of Alonso Treviño de la Garza and Maria Mayor Fernandez de Renteria. He married Ildefonsa Martinez Guajardo.
Juan de Villarreal. He married Juana de la Garza, daughter of Capt. Francisco de la Garza Falcon and Juana Garcia Gutierrez.
Juan Bautista de Villarreal. He married Luisa de la Garza, daughter of Capt. Francisco de la Garza Falcon and Juana Garcia Gutierrez.
Francisco de Villarreal. He married Ursula de Isaguirre (Urrutia) in 1667.
Diego de Villarreal. He married Maria de la Garza Garcia, daughter of Capt. Francisco de la Garza Falcon and Juana Garcia Gutierrez. He married Mariana Cortinas, daughter of Antonio Cortinas de Acosta and Isabel Martinez. He married Ines de Renteria, daughter of Jacinto Garcia de Sepulveda and Clara de Renteria. He married Tomasa Flores.
Luisa de las Casas. She married Alonso Rodriguez de Carvajal.
Bernabe de Villarreal, born 1635. He married Maria Isabel de la Garza, daughter of Capt. Francisco de la Garza Falcon and Juana Garcia Gutierrez.