Overview
- El Norte de Castilla highlights Saint Agnes as a young virgin-martyr venerated for her steadfast faith in Rome and recognized as the patron of adolescents.
- The day also commemorates Fructuosus, the bishop of Tarragona, and his deacons Augurius and Eulogius, who confessed their faith before Procurator Emiliano during the reigns of Valerian and Gallienus.
- According to the account, the three were taken to the amphitheater and executed by fire, with the bishop praying aloud for the peace of the Church before their martyrdom.
- Other observances for January 21 include Saint Epiphanius, Saint Meinrad, Saint Patroclus, Saint Publius, Saint Zacharias the Angelic, Blessed Josefa María de Santa Inés, and Saint John Yi Yun-il.
- The santoral provides a daily calendar of saints rooted in Spanish Christian practice, and the related onomástica custom associates a person's name-day with a saint's feast.