His father was Sgt. Major Juan de la Garza Falcon, and his mother was Maria Margarita Rodriguez de Montemayor.
He requested a dispensation to marry Maria de Sosa. They were married on 2 Jul 1679 in Monterrey. Dispensation source: Guerra, et. al., Index to the Marriage Investigations of the Diocese of Guadalajara, p.26.
He died on 1 Jul 1714 in Monterrey .