His father was Capt. Blas Maria de la Garza Falcon Treviño, and his mother was Beatriz Gonzalez Hidalgo Navarro.
He married Teresa Guerrero.
Tomas de la Garza. In 1703, he requested a dispensation to marry Francisca Perez de Leon. In 1688, he requested a dispensation to marry Maria de Villarreal. He married Ysabel Gonzalez.
Catalina de la Garza. She married Salvador Ochoa de Elejalde, son of Martin Ochoa de Elejalde and Maria Rojo de las Ruelas.
Joseph de la Garza Falcon. In 1694, he requested a dispensation to marry Isabel de Arellano. He married India borrada basal.
Jacinta de la Garza. She married Ignacio de Saldua.