Battle of the Blarathon

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Battle of the Blarathon
Part of the Sasanian civil war of 589-591, Byzantine–Sassanid War of 572–591
The battle between kusrau parvis and Bhram Chubineh.jpg
A Shahnameh illustration depicting the battle between Khusrau II and Bahram Chobin
DateAugust 591
by the river Blarathon near Ganzak, northwest Persia
Result Allied victory
Khosrau II's forces
 Byzantine Empire
Usurper forces of Bahram Chobin
Commanders and leaders
John Mystacon
Khosrau II
Musel II Mamikonian
Bahram Chobin

60,000 in total

  • 40,000 Byzantine troops[1]
  • 12,000 Armenian cavalry[2]
  • 8,000 Persian troops[2]
Heavily outnumbered[1]
Casualties and losses
Unknown Unknown

The Battle of the Blarathon, also known as the Battle of Ganzak, was fought in 591 near Ganzak between a combined ByzantinePersian force and a Persian army led by the usurper Bahram Chobin.


Map of the Roman-Persian frontier showing Maurice's gains after he reinstated Sassanid king Khosrau II on the throne in 591

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, Armavir (Armaouira), 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 the 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.


  1. ^ a b "Bahrām VI Čōbīn – Encyclopaedia Iranica".
  2. ^ a b Pourshariati (2008), pp. 127–128