His father was Capt. Francisco de la Garza Falcon, and his mother was Juana Garcia Gutierrez.
He married Maria de Treviño, daughter of Baltazar de Treviño and Maria Sosa Saldivar.
Catarina Casilda de la Garza. She married Diego de Aldape.
Nicolasa de la Garza. In 1699, she requested a dispensation to marry Francisco de Villareal, son of Diego de Villarreal and Tomasa Flores. In 1707, she requested a dispensation to marry Gregorio Rodriguez, son of Nicolas Rodriguez.
Alonso de la Garza. In 1725, he requested a dispensation to marry Maria Gertudis de la Garza, daughter of Juan de la Garza Saldivar and Maria Cayetana Flores de Valdez.
Miguel de la Garza. In 1727, he requested a dispensation to marry Francisca Gonzalez, daughter of Juan Gonzalez Hidalgo and Maria Cantu.
Antonia de la Garza, born 1680. In 1695, she requested a dispensation to marry Antonio Guerra Cañamar, son of Ignacio Guerra Cañamar and Maria Cavazos de la Garza. They were married on 18 Jul 1695 in Monterrey.