During his reign, Zarmayr brought his army to Troy to help the king of Troy Priam to defend it.
He died by the walls of Troya. His death caused great unrest in Armenia and left no hope of liberation from Assyrian influence.
During the Trojan War, Zarmayr fought side by side with Hector, the son of Priam. After Achilles had killed Hector, Zarmayr fought against him in revenge but was wounded and killed in the battle.