 By supporting a series of rival claimants for the Seleucid throne, Ptolemy VI helped instigate a civil war in the Seleucid realm, which would continue for generations and eventually consume the Seleucid dynasty.In 145 BC, Ptolemy invaded Seleucid Syria and won a total victory at the Battle of the Oenoparus, which left him in charge of both the Seleucid and Ptolemaic realms.However, injuries that he sustained in the battle led to his death three days later.