Khosrov III the Small
During his reign, two generals, Vatche Mamikonian and Vahan Amatuni, started a battle, often coming to help the king. During these years, pro-Sassanid  and anti-Mamikonian sentiment grew in Armenia and so did anti-Roman sentiment. Pro-Sassanid groups gained popularity so much so that they were successful in assassinating Catholicos St. Aristaces I, son of Gregory the Illuminator.