5. C.Fannius, one of the persons who signed the accusation which was brought against P. Clodius in B. C. 61. A few years later, B. C. 59, he was mentioned by L. Vettius as an accomplice in the alleged conspiracy against Pompey. (Cic. Att. 2.24.) Orelli, in his Onolmasticon, treats him as identical with the C. Fannius who was tribune in B. C. 59; but if this were correct, Cicero (l.c.) would undoubtedly have described him as tribune. He may, however, be the same as the Fannius who was sent in B. C. 43 by M. Lepidus as legate to Sex. Pompeius, and who, at the close of the same year, was outlawed, and took refuge with Sex. Pompeius in Sicily. In B. C. 36, when Sex. Pompeius had gone to Asia, Fannius and others deserted him, and went over to M. Antonius. (Cic. Philipp. 13.6; Appian, App. BC 4.84, 5.139.)