Drona was born on October 18, 1941 in
Pangil,
Laguna. He spent his elementary years at Thomas Earnshaw Elementary School, and spent his high school years at Don Bosco Technical Institute in
Santa Ana, Manila. He spent his seminary training at Salesian Seminary College at
Hong Kong, where he earned
PhB. He was ordained to the priesthood on December 22, 1967. He obtained his
Licentiate of Sacred Theology in 1968 from the Universita Pontificia Salesiana in Rome. He was appointed as dean of College of Don Bosco College Seminary in
Calamba, Laguna from 1968 to 1973, then was appointed as rector of the same seminary from 1974 to 1981, and then appointed as vice-provincial superior of SDB Provincial Office in
Parañaque from 1981 to 1987. On July 25, 1987, he was consecrated as bishop. He served as
Bishop of San Jose, Philippines, from 1987 to 2004. He succeeded
Francisco San Diego in 2004, becoming the third
bishop of the
Diocese of San Pablo and the first native of Laguna to serve that post. On January 25, 2013,
Pope Benedict XVI accepted the early retirement of Drona from the pastoral duties in the
Diocese of San Pablo and appointed
Buenaventura Famadico as his successor. ==References==