The region retains Roman Catholicism as the overwhelming religion of the great majority. The Catholic religion has the highest number of followers than any other area in the Philippines. The Catholic church grew in the Bicol Region through the efforts of the Bishops from Nueva Caceres (Naga) from the 17th century until the Philippine Revolution in 1898. Naga, Camarines Sur is the religious center of the Bicol Region and is the seat of one of the oldest dioceses in the Philippines, the ecclesiastical Archdiocese of Caceres. Other dioceses include are the Dioceses of Legazpi, Sorsogon, Daet, Masbate, Libmanan and Virac. Fiestas (Feast day of saints) are annual celebrations of parishes, from a simple barrio fiesta honoring a patron associated for good harvest, to a town fiesta honoring a miraculous saint, a diocesan fiesta like the feast of Our Lady of Salvation, or a regional one such as the Our Lady of Peñafrancia Fiesta, the largest Marian devotion in Asia, a week-long celebration to honor the Virgin Mary, dubbed as the "Patroness of Bicolandia". In Luzon, the Bicol Region holds the most men entering the seminary for Catholic priesthood, or women entering the religious life to become Catholic nuns. This can be accredited to the Holy Rosary Minor Seminary, Daughters of Mary, and Daughters of Charity Convents in Naga.