Nerseh or Nerses Kamsarakan (Armenian: Ներսեհ Կամսարական) was the presiding prince of Armenia in 689–691, backed by the Byzantine Empire.
[1] Another civil war, the Second Fitna, broke out in 680, and allowed the Byzantine emperor, Justinian II, to try to reassert Byzantine authority in Armenia.
Instead of the incumbent presiding prince, Ashot II Bagratuni, they appointed Nerses, prince of Shirak, to rule the country on behalf of Byzantium, with the title of kouropalates.
[4] Nerses' rival, Ashot II, was killed while confronting a retaliatory Arab invasion in 690,[5][6] Kamsarakan's tenure was brief, lasting until 691.
He was succeeded by Smbat VI Bagratuni who betrayed the Byzantines and defected to the Arabs in 693, when the Umayyads, victorious in their civil war, invaded Armenia once more.