“Then I caused them to swear on
oath to my great gods that they would serve me and obey me in
all time to come; and their sons, the heirs to their royal
houses, I took as hostages to their word. Then I extracted
tribute from them, twelve hundred horses and two thousand head
of cattle, and let them return to their own countries…”
Boris
Piotrovsky, The Ancient Civilization of Urartu,
1969.