What was the name of the famous general who became the ruler of Seleucid Empire after the death of Antiochus III?

What was the name of the famous general who became the ruler of Seleucid Empire after the death of Antiochus III?

The name of the famous general who became the ruler of the Seleucid Empire after the death of Antiochus III was Seleucus IV Philopator.