Diosdado Aenlle Talamayan, D.D., Ph.D., S.T.D. (Born October 19, 1932) is the Archbishop-emeritus of the Metropolitan Archdiocese of Tuguegarao in the province of Cagayan, on the island of Luzon, Philippines after his retirement on June 15, 2011.
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He was appointed as the Auxiliary Bishop of Tuguegarao on October 20, 1983 and was ordained also as the Titular Bishop of Girus on January 12, 1984.
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He also had his Diploma in Thesis Advising from the De La Salle University in 1979.
On May 18, 1996, they were formally established as a Congregation of Diocesan Right in the now-Archdiocese of Tuguegarao by his successor, Archbishop Diosdado Talamayan.