The spiritual ministration of Orion belonged formerly to Abucay. Orion became an independent missionary center in 1667. Its first minister was Rev. Domingo Perez. The church and the convent were badly damaged by the earthquake of September in 1856, and were repaired in 1854. The Rev. Ulpiano Herrero constructed the beautiful sacristy and marble altars. In this town Cayetano Arellano, eminent Filipino jurist and statesman and first Filipino chief Justice of the Supreme Court was born on March 2, 1847. Francisco Baltazar (Balagtas), author of Florante at Laura, lived in this town from July 22, 1842 to Feb. 20, 1862.