Tigranes II, more commonly known as Tigranes the Great, was a king of Armenia. A member of the Artaxiad dynasty, he ruled from 95 BC to 55 BC. Under his reign, the Armenian kingdom expanded beyond its traditional boundaries and reached its peak, allowing Tigranes to claim the title Great King or King of Kings. His empire for a short time was the most powerful state to the east of the Roman Republic. Tigranes's title King of Kings is linked, along his victories, also to the appearance of Halley comet during his reign, as depicted on the rare series of Tigranes's coins.

Armenia, also the Kingdom of Greater Armenia, or simply Greater Armenia or Armenia Major sometimes referred to as the Armenian Empire, was a kingdom in the Ancient Near East which existed from 331 BC to 428 AD. Its history is divided into the successive reigns of three royal dynasties: Orontid, Artaxiad and Arsacid (52–428).