His father was Capt. Blas Maria de la Garza Falcon Treviño, and his mother was Beatriz Gonzalez Hidalgo Navarro.
He married Gertrudis de Renteria, daughter of Jacinto Garcia de Sepulveda and Clara de Renteria.
Micaela de la Garza. She married Miguel Flores de Abrego, son of Juan Flores de Abrego and Melchora de la Garza.
Maria de la Garza. She married Pedro de Elizondo, son of Francisco de Elizondo and Beatriz Gonzalez de Paredes. In 1692, she requested a dispensation to marry Juan de Villarreal, son of Juan de Villarreal and Juana de la Garza. Her husband died on 30 Jul 1749 in Monterrey. He was 68 years old.
Pablo de la Garza. He married Maria de Jesus de la Garza, daughter of Lorenzo de la Garza and Maria Gonzalez Hidalgo. In 1707, he requested a dispensation to marry Catarina Gonzalez, daughter of Diego Gonzalez de Ochoa and Anastacia de Treviño. They were married in 1707.
Clara de la Renteria. In 1690, she requested a dispensation to marry Fernando Sanchez de Zamora, son of Capt. Fernando Sanchez de Zamora and Melchora (Beatriz) Fernandez.
Miguel de la Garza Falcon. In 1698, he requested a dispensation to marry Maria Gonzalez , daughter of Andres Gonzalez de Ochoa and Melchora Botello. In 1708, he requested a dispensation to marry Isabel de Uribe, daughter of Phelipe de Uribe and Maria de Treviño.
Jacinto de la Garza. In 1694, he requested a dispensation to marry Maria de Treviño, daughter of Alonso de Treviño and Catalina de Ayala. In 1701, he requested a dispensation to marry Lucia Baez Treviño, daughter of Gov Gen Francisco Baez de Treviño and Catalina de Treviño y Maya.
Juan de Dios de la Garza. In 1707, he requested a dispensation to marry Juana de Treviño, daughter of Gonzalo de Treviño and Margarita de Ayala.
Feliz de la Garza. In 1710, he requested a dispensation to marry Josefa de Treviño, daughter of Gonzalo de Treviño and Margarita de Ayala.
Manuel de la Garza. In 1727, he requested a dispensation to marry Isabel de la Garza. In 1710, he requested a dispensation to marry Maria Gonzalez, daughter of Diego Gonzalez de Ochoa and Anastacia de Treviño.
Julian de la Garza. In 1695, he requested a dispensation to marry Maria de Leon , daughter of Tomas de Leon and Anastacia Cantu.
Leonor de la Garza. In 1692, she requested a dispensation to marry Juan Nuñez de Carbajal, son of Alonso Rodriguez de Carbajal and Luisa Villarreal de las Casas.
Antonia de la Garza. In 1696, she requested a dispensation to marry Melchor de Treviño, son of Melchor de Treviño and Laureana Diaz.
Beatriz de la Garza. She married Nicolas de Sandoval y Mesa.
Juana de la Garza. She married Antonio Rodriguez de Quiroga.