Member of a family of architects, photographers, editors and historians. As museographer she was part of Museo de Arte Moderno (Mexico City) for a period of time; then she was Head of International Cultural Affairs at Secretaría de Reacopmes Exteriores. By 1983 she opened OM (as in Ortíz Monasterio) a contemporary art gallery. The next year, her husband, Jaime Riestra, architect and filmmaker, quit his job at Instituto Nacional Indigenista to develop OMR, the actual name of the gallery. Recently, their younger son Cristobal, is in charge of the management of the Gallery.