Alimodian is doubly proud to present Msgr. Ireneo Amantillo, first bishop of Alimodian. He is the son of Eustaquio Amantillo and Soledad Alisla of Plaza Libertad. Bishop Amantillo obtained his elementary and secondary education in this town. He is an alumnus of the Alimodian High School, Class 1953.
He joined the Redemptorist congregation on July 2, 1957 in Cebu City. He took his philosophy and theology courses in Mt. St. Alphonsus, Bangalore 5, Mysore, India from 1957 to 1962. He was ordained to priesthood on December 16, 1962 at St. Alphonsus Seminary, Cebu City.
After his ordination he was assigned to missionary work in Iloilo, Antique, Negros Occidental, Cebu, Lanao del Sur, and Norte, Misamis Occidental and Oriental, Zamboanga del Sur, Bukidnon and South Cotabato in 1963 to 1975.
He was Rector of Redemptorist Community, Iligan in 1967 to 1972; Vice Rector of Redemptorist Community, Bacolod in 1973 to 1975; Novice Master, Redemptorist Novitiate, Lipa City in 1975 to 1976; Appointed Auxiliary Bishop of Archbishop Patrick Cronin, SSC, D.D., Archbishop of Cagayan de Oro on January 10, 1976.
Msgr. Amantillo was appointed first bishop of Tandag by Pope John Paul I on September 12, 1978. Up to the present, Msgr. Amantillo is the bishop of Tandag, Surigao.