Mithridates III of Pontus: Early Hellenistic King and Dynastic Figure

Introduction

Mithridates III of Pontus was the fourth king of the Mithridatic dynasty, conventionally placed as the son and successor of Mithridates II and his wife Laodice. He is usually dated to the early Hellenistic period, with modern sources giving an approximate reign around 220 BC and an endpoint variously cited near 184–183 BC; his precise dates and even his separate existence are disputed by some historians, a problem linked to Appian’s enumeration that makes Mithridates VI the eighth dynasty member and the sixth bearing the name. He inherited the throne by dynastic succession and formed close Seleucid connections: his sister Laodice III was married to Antiochus III, and he is reported to have taken a Seleucid princess named Laodice as his wife.

Surviving evidence for his rule is sparse but includes two series of silver coins, tetradrachms and drachms, that bear a portrait of the king alongside an image of Zeus and symbols such as a star and crescent; these issues are the earliest known Pontic coins with a royal portrait and have been read by scholars as signs of an assertion of royal ideology and strengthened central authority. Some scholars have also proposed military activity against Greek poleis in central and eastern Anatolia and an early clash with Sinope under his name, but such reconstructions remain contested. The kingdom of Pontus largely drops from the narrative of surviving historians for this period, in part because Galatian settlement in central Anatolia isolated Pontus from the Seleucid sphere. One source gives his death around 184 BC; his recorded children include Mithridates IV, Pharnaces I and a daughter Laodice. Mithridates III’s principal legacy in the sources is numismatic evidence and dynastic ties; his chronology and historical footprint remain matters of scholarly debate.