His father was Jacinto de Cobarrubias, and his mother was Ana de Salazar.
He married Luisa Baez de Benavides Martinez, daughter of Francisco Baez de Benavides Lopez and Isabel Martinez Guajardo Navarro.
He married Catarina de los Santos Coy, daughter of Bernardo de los Santos Coy and Maria Ines de la Cerda. It was his second marriage, and her second marriage.
Santiago de Treviño. In 1690, he requested a dispensation to marry Leonor de la Garza. In 1688, he requested a dispensation to marry Maria de Treviño.
Ines de Treviño. She married Diego Botello de la Garza, son of Francisco Botello de Morales and Juana de la Garza Martinez Guajardo.
Lucia de Treviño. She married Mateo Garcia, son of Lorenzo Garcia and Juana de la Garza.
Francisco Baez de Treviño, born 1660. He married Catalina de Treviño y Maya, daughter of Juan de Treviño and Ana de Maya on 20 Aug 1679 in Monterrey.