He was the son of Juan Antonio Trelles and María Antonia Montes. He completed his secondary studies in the cities of Cuzco and Lima; He then traveled to France, where he pursued a career in medicine at the University of Paris until graduating as a physician in 1935.[1]
He worked in Paris at the Dejerine Foundation, from 1930 to 1935, with Professor Jean Lhermitte, under whose direction with F. Masquin they published the book Précis d'anatomo-physiologie normale et pathologique du système nerveux. His work in the field of Medicine deserved, in view of his psychiatric clinical work, the Medical-Psychological Society of Paris to give him the Trevel prize in 1934.[1]
After intense scientific activity he returned to Peru in 1936. He revalidated his degree at the University of San Marcos by presenting a thesis on "Protuberance Softening", which won the award from the National Academy of Medicine. Almost immediately he began working at the asylum for incurables "El Refugio" in which he created the first neurological hospital in Peru, called Santo Toribio de Mogrovejo, of which he was director (1940–1974). Thanks to his drive, this hospital became at the forefront of modern knowledge in neuroscience at the national level.[1]
He also opted for a teaching career and was a professor of neurology at San Marcos (1936–1961). He was one of the founders of Cayetano Heredia University.[1]
Together with Honorio Delgado he founded the Journal of Neuropsychiatry in 1938.
He was one of the founders of the Social Republican Party (Spanish: Partido Social Republicano) in 1948, along with Jorge Basadre, Javier de Belaúnde [es], Arturo Osores and Julio Villegas. This party was short-lived, but its leaders later went on to form other parties, such as the Christian Democratic Party and Popular Action.[2] Precisely in the latter, founded in 1956, Trelles began his military career, becoming its general secretary in the period from 1958 to 1959 and from 1965 to 1967.[1]
When the first term of the architect Fernando Belaúnde Terry began in July 1963, he was appointed Minister of Government and Prime Minister of Peru.[3] He resigned at the end of that year after being censured in parliament for the violent events that occurred months ago in Cuzco and at the Mollebamba ranch. In that area, peasants demanding agrarian reform had taken over land, leading to a confrontation with the owners, which left 7 dead and 22 injured. This event was exploited by the Aprista-Odriist Congress Coalition to attack the government and bring down the ministerial cabinet.[4][2]
Upon the return to democracy, he was elected Senator for the period from 1980 to 1985. He served as president of his Chamber from July 1980 to July 1981.[2][3]
^ abcGarcía Belaúnde, Víctor Andrés (1988). Los ministros de Belaunde (1st ed.). Lima: Librería Editorial Minerva – Miraflores. pp. 333, 335–338, 355.
^ abChirinos Soto, Enrique (1985). Historia de la República (1930–1985) (in Spanish). Vol. 2 (3rd ed.). Lima: AFA Editores Importadores S.A. pp. 222, 355.
