In the year 34 BC, Mark Antony gave more land and titles in the east to Caesarion and his own three children with Cleopatra. Caesarion was called a god, the son of a god, and "King of Kings." This was a really big title that was never given by romans to their allies. Some people thought this was a threat to the greatness of the Roman people. Antony also said that Caesarion was really Julius Caesar's son and should be the next ruler. This made Octavian (who became ruler because he was Julius Caesar's grandnephew and adopted son) very angry. These things caused a big fight between Antony and Octavian. 