2In fact, according to certain Greek writers, this child was very like Caesar in looks and carriage. Mark Antony declared to the senate that Caesar had really acknowledged the boy, and that Gaius Matius, Gaius Oppius, and other friends of Caesar knew this. Of these Gaius Oppius, as if admitting that the situation required apology and defence, published a book, to prove that the child whom Cleopatra fathered on Caesar was not his.