Phraates III of Parthia
Who was Phraates III of Parthia?
Parthian emperor (70 BC - 57 BC)
Biographical data adapted from Wikipedia’s article on Phraates III of Parthia (CC BY-SA 4.0).
Biography
Phraates III ruled the Parthian Empire from 69 BC to 57 BC during a tough time in Parthian history. As the son and heir of Sinatruces, he took over an empire that had lost its leading position in the Near East due to the rise of Armenia under Tigranes the Great and Pontus under Mithridates VI Eupator. His time as king involved a lot of diplomatic efforts and military actions aimed at making Parthia dominant in the region again.
When war broke out between Rome and the Armenian-Pontic alliance, Phraates III opted to stay neutral. Both sides sought his support—Tigranes and Mithridates VI pushed him to join their anti-Roman group, while Roman diplomats also approached him for an alliance against their foes. Phraates III made promises to both but stayed out of the fighting, waiting to see how the conflict would unfold to choose the best option for Parthia.
In 65 BC, Phraates III attacked Armenia with Tigranes the Younger, who had rebelled against his father, Tigranes the Great. The campaign led by the Parthians initially succeeded but got stuck in a lengthy siege of Artaxata, the Armenian capital. Phraates III eventually handed over command of the Armenian campaign to Tigranes the Younger, while still providing Parthian military support. However, the younger Tigranes was defeated by his father and later switched sides to join the Roman commander Pompey.
Around the same time, Phraates III managed to retake the territories of Adiabene, Gordyene, and northern Mesopotamia from Armenian control. These gains were partly undone when Roman forces led by Aulus Gabinius and Lucius Afranius reached the Tigris River, forcing Phraates III to give Gordyene back to Tigranes under Roman protection. He ruled until 57 BC, after which his sons took over, and their rivalry continued to cause trouble for the Parthian Empire in the years that followed.
Before Fame
Phraates III was born into the Arsacid dynasty as the son of King Sinatruces, who had brought Parthian rule back after a period under Scythian control. His early life unfolded during a time when Parthia was rebuilding and strengthening after destructive invasions by nomadic tribes from the north. During his youth, the influence of regional kingdoms grew, especially with Armenian territories expanding under Tigranes the Great.
When Phraates III became king in 69 BC, the power dynamics in the Near East had changed significantly. Armenian expansions and Rome's growing influence in the eastern Mediterranean had weakened the traditional Parthian influence. His reign marked a new phase in Parthian foreign policy that required skilled diplomacy and military strategy to manage the rival powers of his time.
Key Achievements
- Maintained Parthian independence during the Third Mithridatic War through skillful neutrality
- Reconquered Adiabene, Gordyene, and northern Mesopotamia from Armenian control
- Established marriage alliance with Armenian royal family to advance Parthian interests
- Launched successful military expedition into Armenia proper in 65 BC
- Preserved Parthian territorial integrity despite pressure from both Roman and Armenian forces
Did You Know?
- 01.He made marriage alliances with his enemies, becoming father-in-law to Tigranes the Younger before their military partnership turned into betrayal
- 02.Both Rome and the Armenian-Pontic alliance simultaneously courted his support during their war, leading him to make contradictory promises to each side
- 03.His siege of Artaxata became so prolonged that he delegated command to his son-in-law rather than continue personal leadership of the campaign
- 04.Roman forces advanced as far as the Tigris River during his reign, marking one of the deepest Roman penetrations into traditional Parthian territory
- 05.He successfully reclaimed three major territories from Armenian control in a single campaign during 65 BC