Primianus of Larino was a Christian martyr who lived in the early 4th century. According to tradition, he was one of three brothers, including Firmianus and Castus, who faced persecution during the reign of Diocletian. While his brothers were reportedly killed by lions in the amphitheater of Larino, Primianus was said to have tamed the animals before eventually being executed by decapitation near the Temple of Mars. He is recognized as a saint and serves as a patron for several Italian locations.