After completing his studies he devoted himself to teaching and research and documentation on the history of the conquest and the Viceroyalty of Peru.
Was secretary to Bishop Fidel Tubino, when he served as rector of the Pontifical Catholic University of Peru (PUCP ).
His teaching began in 1953 in the Pre condition Instructor Seminar was led by Dr. Luis Jaime Cisneros.
He questioned the decision of the Municipality of Lima removal Monument Pizarro the side of the Plaza Mayor.
Finally, after years of painful illness and consumed by cancer, died on December 25, being their veiled in the headquarters of the Riva- Agüero Institute, where he began his academic work and came to be the director, school that was always bound residues .