Pagan soldier in the imperial Roman army and stationed in Nicomedia (in modern Turkey). Assigned to hunt Christians during the persecutions of Diocletian, he came to know them and the faith so well that he converted. Martyr.
- Book of Saints, by the Monks of Ramsgate
- Catholic Online
- Den katolske kirke
- Our Sunday Visitor’s Encyclopedia of Saints
- “Saint Trophimus of Nicomedia“. CatholicSaints.Info. 17 March 2013. Web. 27 October 2016. <>