Battle of Edessa Part of the Roman–Persian Wars A rock-face relief at Naqsh-e Rostam, depicting the triumph of Shapur I over the Roman Emperor Valerian. Date AD 260 Location Edessa, Osroene (southern Turkey) Result Decisive Sassanid victory Belligerents Sassanid Empire Roman Empire Commanders and leaders Shapur I Valerian (POW) Strength Unknown 70,000[1] Casualties and losses Unknown Entire force[2]