The Battle of Satala was fought in 298 between the forces of the Roman Empire under the Tetrarch Galerius and the forces of the Sassanid Persian ruler Narseh. The battle was a decisive Roman victory. Galerius' forces caught the Persians by surprise and routed them, capturing the Persian camp, including Narseh's family, harem and treasure. The battle was followed by the Treaty of Nisibis, highly advantageous to Rome.