Tigranes II, more commonly known as Tigranes the Great (Tigran Mets in Armenian; 140–55 BC), 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.
Either the son or nephew of Artavasdes I, Tigranes was given as a hostage to Mithridates II of Parthia after Armenia came under Parthian suzerainty. After ascending to the Armenian throne, he rapidly expanded his kingdom by invading or annexing Roman and Parthian client-kingdoms. Tigran decided to ally with Mithridates VI of Pontus by marrying his daughter Cleopatra. At its height, Tigranes' empire stretched from the Pontic Alps to Mesopotamia and from the Caspian Sea to the Mediterranean. With captured vassals, his lands even reached the Red Sea and the Persian Gulf. Many of the inhabitants of conquered cities were forcibly relocated to his new capital, Tigranocerta. An admirer of the Greek culture, Tigranes invited many Greek rhetoricians and philosophers to his court, and his capital was noted for its Hellenistic architecture.