Gertrudis de la Vega

She married Marcos de las Casas, son of Bernabe de las Casas and Maria Beatriz Navarro Rodriguez.

Juan de las Casas. He married Gertrudis de Montemayor, daughter of Diego Rodriguez de Montemayor and Maria Ines de la Garza Gonzalez Hidalgo on 26 Sep 1679 in Monterrey. He married Luisa Fernandez, daughter of Gregorio Fernandez de Tijerina and Maria Gonzalez. His wife died on 30 Sep 1692 in Monterrey. She was 16 years old.

Margarita de las Casas. She married Nicolas de la Cerna y Alcarcon, son of Nicolas de la Cerna y Contreras and Leonor de la Garza on 30 Sep 1669 in Monterrey. She married Nicolas Ochoa de Elizalde, son of Nicolas Ochoa de Elejalde and Maria Isabel de la Garza Gonzalez on 13 Mar 1697 in Monterrey.

Mencia de las Casas. She married Joseph Ochoa de Elejalde, son of Nicolas Ochoa de Elejalde and Maria Isabel de la Garza Gonzalez on 27 Sep 1676 in Monterrey.