Dictionary of Greek and Roman Biography and Mythology/Cicero 3.
3. L. Tullius Cicero, brother of the foregoing. He accompained M. Antonius the orator to Cilicia in b. c. 103 as a private friend, and remained with him in the province until his return the following year. He must have lived for a considerable time after this period, since he was in the habit of giving his nephew many particulars with regard to the pursuits of Antonius. (De Orat. ii. 1.)