Diana Mendoza was born in Junin, Peru. Although she does not like to tell her age, she is probably in her fifties. Diana is a graduate of the Escuela Nacional de Bellas Artes, graduating with honors in the specialty of Painting and Drawing. She currently is a Professor of Painting at that institution. Diana has also worked as a designer before devoting her time exclusively to painting. She is also an accomplished musician and mother to several children.

Diana has participated in several exhibitions, including: Galeria Entre Nous, Lima(1983), Arte Popular de Peru, Salvador, Brazil(1984), Universidad de Bahia, Brazil(1986), Galeria Panorama, Bahia, Brazil(1986), Country Club Jacaranda, Bahia, Brazil(1988), Club Ancash, Lima, Peru(1988), Associacion de Artistas Plasticos del Peru(1988), Galeria Picasso, Lima, Peru(1988), Casa de la Cultura, Manaos, Brazil(1992), Palacio de Cultura, Rio de Janeiro, Brazil(1992), Instituto Peruano Norteamericano, Lima, Peru(1993), and Galeria chagall, Lima, Peru(1994).