After watching the martyrdom of Saint Porphyrius, Seleucus praised the saint‘s actions. Some soldiers overheard him, dragged him in front of the tribunal, and he was martyred without further investigation.
- Book of Saints, by the Monks of Ramsgate
- Martirologio Romano, 2005 edition
- Our Sunday Visitor’s Encyclopedia of Saints
- “Saint Seleucius of Caesarea“. CatholicSaints.Info. 16 October 2013. Web. 1 October 2016. <>