The fall of the Arsacid kingdom of Greater Armenia in 428 AD is generally viewed in the context of geopolitical and internal conflicts of the second half of the IV – beginning of the V centuries AD. Meanwhile, the weakening of the Arsacid throne was a result of various factors. In particular, the climatic and environmental changes documented by various palaeoclimatic and palaeoenvironmental studies indicate a comprehensive climatic phenomenon that occurred in the region around 350–450 AD, which has been named “Late Roman mega-drought” in special literature.

KeywordsKingdom of Greater Armenia Arsacid dynasty Arshak II Pap Church crisis abandonment drought climate change decline