His father was Julio Ernesto Denegri Cornejo - his grandfather was Marco Aurelio Denegri Valega - and his mother was Leonor Santagadea Arana. He attended Colegio San Andrés. He later studied Law at Universidad Nacional Mayor de San Marcos, and then Sexology and Sociology. He said that he attended several universities; however, he considered himself a "self-taught polymath".
Career
During the 70s, Denegri was the editor of Revista Científica y Artística de Cultural Sexual – Fáscinum. Its first issue was published in April 1972. His career in Peruvian television began in 1973. From 1997 to 2000 he hosted A solas con Marco Aurelio Denegri on Cable Magico Cultural. He resigned in 2000 and then moved to TV Peru-, thanks to the aid of José Watanabe, and there he hosted a television program called La función de la palabra, where he addressed various aspects of culture-from music to the beauty of the hands-although he considered it counter-cultural. He wrote articles for various Peruvian newspapers, which have been published in "De esto y de aquello" by Ricardo Palma University. He wrote a weekly column for El Comercio.
Personal life
Denegri never married and was very reserved regarding his private life. In some programs he expressed being friends with some intellectuals, although during the last years of his life he became totally isolated. His main link to the world was his assistant and maid Rosa Torres; anyone interested in speaking to Denegri had to ring her cellphone to request a telephone conversation with Denegri. After Denegri gave her permission, she connected the phone line and the person in question could communicate directly with him. During his youth he frequently visited Jirón Huatica in Lima, a meeting place for prostitutes and their clients. In "Miscelánea humanística" he drew a map of the location as he knew it. He was also a witness to peculiar sexual encounters. In one of the airings of "La función de la palabra", he said that together with a group of people he witnessed a technical intercourse session which involved great endurance in resisting the urge to ejaculate. Denegri related that he saw a male prostitute enduring 45 minutes of passive oral sex without ejaculating. Furthermore, in an interview conducted by journalist Raúl Tola, Denegri said that he attended an ejaculation contest which consisted in ejaculating up to the farthest distance. Amused by his story, Tola asked him where could one find such contests, to which Denegri only replied that several such contests exist. He was an audiophile and music lover and a Peruvian cajón lover; for this reason he introduced the term cajonística to refer to the art of Afro-Peruvian cajón playing.
Fáscinum. Ensayos sexológicos. Palabras preliminares de Carlos Alberto Seguín. Lima: Asociación de Estudios Humanísticos, 1972. 231 p. Contiene los ensayos Obscenidad, pornografía y censura y ¿Y qué fue realmente lo que hizo Onán?, más una Bibliografía en español sobre la obscenidad, la pornografía y la censura.
¿Y qué fue realmente lo que hizo Onán?; Lima: Kavia Kobaya Editores, 1996.
Normalidad y anormalidad & El asesino desorganizado; Lima: Umbra, 2000.
De esto y de aquello; Lima: Universidad Ricardo Palma, 2006.
Hechos y opiniones acerca de la mujer; Lima: Editorial San Marcos, 2008.
Cajonística y vallejística; Lima: Editorial San Marcos, 2009.
Miscelánea humanística; Lima, Perú: Fondo Editorial de la Universidad Inca Garcilaso de la Vega, 2010.
Lexicografía; Lima: Editorial San Marcos, 2011.
Obscenidad y Pornografía; Lima, Perú: Fondo Editorial Universidad Inca Garcilaso de la Vega, 2012.
Esmórgasbord; Lima, Perú: Fondo Editorial de la Universidad Inca Garcilaso de la Vega, 2011.
La niña masturbación y su madrastra tabú; Lima, Perú: Fondo Editorial de la Universidad Inca Garcilaso de la Vega, 2015.
Poliantea; Lima, Perú: Fondo Editorial de la Universidad Inca Garcilaso de la Vega, 2014.
Polimatía; Lima, Perú: Fondo Editorial de la Universidad Inca Garcilaso de la Vega, 2014.
Arte y Ciencia en la Gallistica; Lima, Perú: Fondo Editorial de la Universidad Inca Garcilaso de la Vega, 2015.
Mixtifori; Lima, Perú: Fondo Editorial de la Universidad Inca Garcilaso de la Vega, 2017.