so called, it would appear, from Parma, his birth-place, is in most works upon Roman literature styled C. Cassius Severus Parmensis, but erroneously, since there is no authority whatsoever for assigning the praenomen of Caius or the cognomen of Severus to this writer.
[W.R]A Dictionary of Greek and Roman biography and mythology
Smith, William
A Dictionary of Greek and Roman biography and mythology. William Smith, LLD, ed. 1890