For almost four centuries, the Parthians served as the rulers of the Armenian kingdom, even after their own kingdom had fallen to the Sasanians in 223 CE. Yet, as far as the documents from this period attest, it was not Parthian, the language of the ruling class, but Armenian that served as the main language of the kingdom. Parthian, shortly after the fall of the Arsacid Parthian Empire, effectively ceases to exist, it would appear.