> Martyr of Rome, with Concordia and other companions, he is a controversial figure who censured Pope St. Callistus I. Hippolytus was slain in Sardinia where he had been exiled for being elected as an antipope, the first in the history of the Church. He was reconciled to the Church before his martyrdom. His writings were important, including A Refutation of All Heresies, Song of Songs, and The Apostolic Tradition. Continue reading: https://www.catholic.org/saints/saint.php?saint_id=3786 > *[Catholic Online](https://www.catholic.org/) needs your help. We're not salespeople, but we depend on donations from people like you. Please, consider [making a donation.](https://ycvf.org/products/donate%20Online%20Ads%20Humbly_primary) Just $5.00, the price of a cup of coffee, can help ensure Catholic Online School continues to thrive.* > *[Catholic Online](https://www.catholic.org/) (a 501(c)(3) corporation) is a Project of [Your Catholic Voice Foundation](https://ycvf.org/), a Not-for-Profit Corporation. Your Catholic Voice Foundation has been granted a recognition of tax exemption under Section 501(c)(3) of the Internal Revenue Code. Federal Tax Identification Number: 81-0596847. Your gift is tax-deductible as allowed by law.*