Philip I Philadelphus
Philip I Philadelphus was the 3rd son of
Antiochus VIII Grypus and took the diadem in the
95 BC together with his twin brother
Antiochus XI Ephiphanes, after the eldest son
Seleucus VI Epiphanes was killed by their cousin
Antiochus X Eusebes. He managed to establish himself in
Antiochia sometime after
92 BC and survived attacks from younger brother
Demetrius III Euergetes. His rule was ended in
83 BC when
Tigranes conquered
Syria, or sometime before, and he disappears from history at that point, but later coins bearing his portrait were issued by the
Roman authorities.