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.
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. They were married in 1707.
Clara de la Renteria. In 1690, she requested a dispensation to marry Fernando Sanchez de Zamora.
Miguel de la Garza Falcon. In 1698, he requested a dispensation to marry Maria Gonzalez . In 1708, he requested a dispensation to marry Isabel de Uribe.
Jacinto de la Garza. In 1694, he requested a dispensation to marry Maria de Treviño. In 1701, he requested a dispensation to marry Lucia Baez Treviño.
Juan de Dios de la Garza. In 1707, he requested a dispensation to marry Juana de Treviño.
Feliz de la Garza. In 1710, he requested a dispensation to marry Josefa de Treviño.
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.
Julian de la Garza. In 1695, he requested a dispensation to marry Maria de Leon .
Leonor de la Garza. In 1692, she requested a dispensation to marry Juan Nuñez de Carbajal.
Antonia de la Garza. In 1696, she requested a dispensation to marry Melchor de Treviño.
Beatriz de la Garza. She married Nicolas de Sandoval y Mesa.
Juana de la Garza. She married Antonio Rodriguez de Quiroga.