Bishop of Philippi in Macedonia. Exiled by Arians. Missionary to the area of modern Germany where he worked with Saint Alban of Mainz. Forced to flee ahead of invading Vandals. When the Vandals caught up to Theonestus, he was murdered for his fidelity to the faith. Martyr.
- “Saint Theonestus of Philippi“. CatholicSaints.Info. 15 July 2012. Web. 30 August 2016. <>