Battle of Blarathon

Part of the Sasanian civil war of 589-591, Byzantine–Sassanid War of 572–591

A Shahnameh illustration depicting the battle between Khusrau II and Bahram Chobin

Date	August 591
Location	near Ganzak, northwest Persia
Result	Decisive allied victory

Belligerents

Allied forces of Khosrau II

Byzantine Empire

Rebel forces of Bahram Chobin

Commanders and leaders

John Mystacon
Narses
Khosrau II
Musel II Mamikonian
Vistahm
Vinduyih

Bahram Chobin

Strength

40,000 Byzantine troops
12,000 Armenian cavalry
8,000 Persian troops

Heavily outnumbered

Casualties and losses

Unknown

The Battle of Blarathon was fought in 591 near Ganzak between a combined Byzantine–Persian force and a Persian army led by the usurper Bahram Chobin.

The combined army was led by John Mystacon, Narses, and the Persian king Khosrau II. The Byzantine–Persian force was victorious, ousting Bahram Chobin from power and reinstating Khosrau as ruler of the Sassanid Empire. Khosrau was swiftly reinstated upon the Persian throne, and as agreed upon returned Dara and Martyropolis. Additionally, he agreed to a new partition of the Caucasus by which the Sassanids handed over to the Romans many cities, including Tigranokert, Manzikert, Baguana, Valarsakert, Bagaran, Vardkesavan, Yerevan, Ani, Kars, and Zarisat. Most of the Kingdom of Iberia, including the cities of Ardahan, Lori, Dmanisi, Lomsia, Mtskheta, and Tontio became Roman dependencies. Also, the city of Cytaea was given to Lazica, also a Roman dependency. The Battle of Blarathon altered the course of Roman-Persian relations dramatically, leaving the former in the dominant position. The extent of effective Roman control in the Caucasus reached its zenith historically.

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