A group of four clerics in Heraclea (modern Marmara Ereglisi, Turkey) who were arrested in the persecutions of Diocletian. They were imprisoned, abused and ordered to turn over all the scriptures that they had hidden from authorities; they refused, and were executed together. Martyrs.
- “Martyrs of Heraclea“. CatholicSaints.Info. 22 October 2013. Web. 3 August 2015. <>