Roman regiments of the VIth century.

[Robert Vermaat]

In the Notitia it's actually Placidi Valentiniaci Felices but I think the "c" is a typo (at least according to my Latin teacher the C is incorrect).

I'd warn for 'scribal errors' for they often are the historian's best friend.
Also, Latin teachers may be correct on grammar, but still wrong about the original. I once had a lengthy discussion with someone who insisted that the latin of the Strategikon was 'incorrect' and therefore had to be 'improved'.. I just could not make him understand that it was 'military Latin' used by Greek-speaking Romans during the 6th century, and therefore a primary source. He kept insisting his school latin was a better choice. :|