6. C.Flavius, a brother of L. Flavius [No. 5], and likewise a Roman eques, was recommended by Cicero, in B. C. 46, to M'. Acilius, praetor of Sicily, as an intimate friend of C. Calpurnius Piso, the late son-in-law of Cicero. (Ad Fam. 13.31.) In some editions of Cicero's oration for Plancius (100.42), we read the name of C. Flavius; but Garatoni and Wunder have shown that this is only an incorrect reading for C. (Alfius) Flavus.
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