Juan Francisco Javier Rodriguez de Montemayor was born circa 1710, the son of Miguel Rodriguez de Montemayor and Luisa Garcia de Quintanilla.
He married Josefa de Moya on 28 Jan 1732 in Monterrey.
Maria Guadalupe Rodriguez de Montemayor was born circa 1736. She married Jose Eusebio Leonardo Caballero de los Olivos.