generals Traianus and Vadomarius and the Armenian sparapet (general) Mushegh Mamikonian at Bagavan and Gandzak. Valens had overstepped the 363 treaty and then successfully defended his transgression. A truce settled after the 371 victory held as a quasi-peace for the next five years while Shapur was forced to deal with a Kushan invasion on his eastern frontier. Meanwhile, troubles broke out with the boy-king Pap, who purportedly had the Armenian patriarch Nerses assassinated and demanded control of a number of Roman cities, including Edessa. Controversy also ensued over the issue of the appointment of a new patriarch of Armenia, with Pap appointing a candidate without the traditional approval from Caesarea. Pressed by his generals and fearing that Pap would defect to the Persians, Valens made an unsuccessful attempt to capture the prince and later had him executed inside Armenia. In his stead, Valens imposed another Arsacid, Varazdat, who ruled under the regency of the sparapet Mushegh Mamikonian, a friend of Rome. None of this sat well with the Persians, who began agitating again for compliance with the 363 treaty. As the eastern frontier heated up in 375, Valens began preparations for a major expedition. Meanwhile, trouble was brewing elsewhere. In Isauria, the mountainous region of western Cilicia, a major revolt had broken out in 375 which diverted troops formerly stationed in the East. Furthermore, by 377, the Saracens under Queen Mavia had broken into revolt and devastated a swath of territory stretching from Phoenicia and Palestine as far as the Sinai. Though Valens successfully brought both uprisings under control, the opportunities for action on the eastern frontier were limited by these skirmishes closer to home. Later reign: 373–376 Valens became the senior augustus when his older brother Valentinian died at Brigetio (Szőny) on 17 November 375 while on campaign against the Quadi in Pannonia. He may have died of stroke. His body was prepared for burial and started its journey to Constantinople, where it arrived the following year. Gratian was then the only augustus in the western empire, though certain among Valentinian's generals promoted his four-year-old second son Valentinian II, whom the army on the Danube acclaimed augustus at Aquincum (Budapest), despite Gratian's existing prerogatives. Valentinian's courtiers and his Arian Christian widow Justina still had been holding great influence. Valens and Valentinian II were consuls for the year 376, Valens's fifth consulship. The late augustus Valentinian's body arrived in Constantinople