- Christian of St-Pantaleon
- Christianus of….
Monk in the monastery of Fulda, Germany. First abbot of the St-Pantaleon Abbey in Cologen, Germany. Wrote works on theology that were widely read in his time.
- Book of Saints, by the Monks of Ramsgate
- Heiligen 3s
- Heiligen Lexikon
- Our Sunday Visitor’s Encyclopedia of Saints
- “Saint Christian of Cologne“. CatholicSaints.Info. 20 March 2013. Web. 30 March 2017. <>