Diego del Riego de Mendoza

"México, Distrito Federal, registros parroquiales y diocesanos, 1514-1970", index and images, FamilySearch (https://familysearch.org/pal:/MM9.1.1/QJ8Y-1TMV : accessed 28 Sep 2014), Santiago del Riego in entry for Diego del Riego de Mendoça, 1584. ... Name: Diego del Reigo de Mendoça; Event Type: Baptism; Event Date: 18 Aug 1584; Event Place: Asunción Sagrario Metropolitano, Centro, Distrito Federal, México; Gender: Male; Father's Name: Santiago del Riego; Mother's Name: Ana de Mendoça

See a photograph of Diego's original baptism record [fourth entry down from top of left page] citing also his godparents Treasurer Rui Díaz de Mendoça and his wife Dona María de Belasco here: https://familysearch.org/pal:/MM9.3.1/TH-1-9758-16573-69?cc=1615259

See a photograph of Diego's original baptism record in his profile's "Media/Documents" section.