- CHRISTIANUS Druthmarus
- CHRISTIANUS Druthmaruscognomine Grammaticus, Monachus Corbiacensis, circa A. C. 840. scripsit commentarium, in S. Matth. et epitomen Lucae ac Iohannis, Trithem. Item Patriatcha Antiochiae, hâc urbe a Saracenis captâ, A. C. 1268. Martyr.
Hofmann J. Lexicon universale. 1698.