The paper analyzes the role of Caius Antonius in the events of 63 BC. The author comes to the following conclusions: despite the agreement with Cicero, which assumed the transfer the rich province of Macedonia to him after the consulship, Antonius considered other ways to get out of debts. Intrigued by Catiline’s promises and being under the influence of his relative Lentulus Sura, he could have taken part in the meetings of the Catilinarii, but retreated from them as soon as he saw that the matter was becoming futile.
