Lesser Armenia

Lesser Armenia (Armenian: Փոքր Հայք, Pokr Hayk;Latin: Armenia Minor), also known as Armenia Minor and Armenia Inferior, comprised the Armenian–populated regions primarily to the west and northwest of the ancient Kingdom of Armenia (also known as Kingdom of Greater Armenia). The region was later reorganized into the Armeniac Theme under the Byzantine Empire.

Lesser Armenia (or Armenia Minor) was the portion of historic Armenia and the Armenian Highlands lying west and northwest of the river Euphrates. It received its name to distinguish it from the much larger eastern portion of historic Armenia—Greater Armenia (or Armenia Major).

From the 6th century BC, the territory of Lesser Armenia was ruled by Orontid Dynasty (Yervanduni, Armenian: Երուանդունի), who were subjects of the Achaemenid Empire. The early Armenian kingdom was named the Satrapy of Armenia.

Some time after the death of Alexander the Great, Mithridates, a Persian nobleman from Asia Minor, declared himself king of the region that later became known as the Kingdom of Pontus. As the kingdom grew in strength, it included Lesser Armenia well.

Armenia was disputed kingdom between Rome and Parthia during the Roman-Persian Wars from 66 BC to the 2nd century AD. Roman influence was first established with Pompey's campaign of 66/65 BC, and again in 59 AD in the Roman–Parthian War campaign of Gnaeus Domitius Corbulo; which resulted in the deposition of Tiridates I.

...
Wikipedia