The siege marks the start of Shapur I's second invasion of the Roman Empire, initiating the first Sassanid penetration into Syria.
Key Facts
- Year of siege
- 252 AD
- Sassanid ruler
- Shah Shapur I
- Shapur's regnal year
- Eleventh regnal year
- Key source: Chronicle
- Chronicle of Seert and Al-Tabari
- Corroborating source
- Liber Caliphorum (8th century)
Location
Cause → Event → Consequence
Shapur I of the Sassanid Empire pursued an aggressive expansionist policy against Rome, launching a series of campaigns into Roman territory. His second campaign targeted Roman holdings in the east, with Nisibis, a strategically vital frontier city, as an early objective.
In 252, Sassanid forces under Shapur I besieged and captured the Roman city of Nisibis. The date is derived from Syriac and Arabic sources, including the Chronicle of Seert and Al-Tabari, which place the event in Shapur's eleventh regnal year, corroborated by the eighth-century Liber Caliphorum.
The fall of Nisibis opened the path for the first Sassanid invasion of Syria, representing a major escalation in Roman-Sassanid conflict. This campaign demonstrated the Sassanid Empire's capacity to strike deep into Roman territory and foreshadowed the later capture of Emperor Valerian in 260.
Belligerents & Mobilization Analysis
Side A
1 belligerent
Shapur I.
Side B
1 belligerent