Passage: Philip II Philoromaeus (Greek: Φίλιππος ὁ Φιλορωμαῖος, "Friend of the Romans") or Barypous (Βαρύπους, "Heavy-foot"), a ruler of the Hellenistic Seleucid kingdom, was the son of the Seleucid king Philip I Philadelphus.

Question: What is the name of Philip II Philoromaeus father?
Philip I Philadelphus