Tetradrachm - Antiochos XI and Philip I

Antiochos XI and Philip I were twins, sons of Antiochos VIII Grypos, who jointly seized power in 94 BC during the protracted civil war that was tearing the Seleucid dynasty apart. Their co-reign lasted barely a year — Antiochos XI was killed in battle against their half-brother Antiochos X at the Orontes River, leaving Philip I to rule alone. Joint-reign issues from this period are comparatively scarce simply because the window for production was so narrow, squeezed between a dynastic murder and a battlefield death.