Sparapet () was a hereditary military rank that originated in the 2nd century BC, under the reign of King Artashes I, and was used in the Kingdom of Armenia and the Armenian Kingdom of Cilicia (in Cilicia, the bearer of the title was known as a Constable; ), was supreme commander of the armed forces. It was the equivalent of the Parthian Spahbod (cf. Georgian spaspet "high constable, commander in chief"). The House of Mamikonian traditionally held the title the first centuries of the rule of the Arsacid kings of Armenia until their weakening and eventual settlement in the Byzantine Empire in the 8th century, when Bagratuni and Artsruni feudal lords adopted the rank. See սպարապետ for etymology.