The spiritual ministration of Orion belonged formerly with Abucay. Orion became an independent missionary center in 1667. Its first minister was the Reverend Domingo Perez. The church and the convent were badly damaged by the earthquakes of September 16, 1852, and were repaired in 1854. The Reverend Ulpiano Herrero constructed the beautiful sacristy and the marble altars. In this town, Cayetano Arellano, eminent Filipino jurist and statesman and the 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 February 20, 1862.