According to the peace treaty between Shapur and Jovian, Georgia and Armenia were to be ceded to Sasanian control, and the Romans forbidden from further involvement in the affairs of Armenia. Under this agreement Shapur assumed control over Armenia and took its King Arsaces II (Arshak II), the faithful ally of the Romans, as prisoner, and held him in the Castle of Oblivion (Fortress of Andməš in Armenian or Castle of Anyuš in Ḵuzestān). Supposedly, Arsaces then committed suicide during a visit by his eunuch Drastamat. Shapur attempted to introduce Zoroastrian orthodoxy into Armenia. However, the Armenian nobles resisted him successfully, secretly supported by the Romans, who sent King Papas (Pap), the son of Arsaces II, into Armenia. The war with Rome threatened to break out again, but Valens sacrificed Pap, arranging for his assassination in Tarsus, where he had taken refuge (374).