Artsakh (historical province)
Artsakh (Armenian: Արցախ, romanized: Artsʻakh, pronounced [ɑɾˈtsʰɑχ]) was the tenth province (nahang) of the Kingdom of Armenia from c. 189 BC until 387 AD and afterwards made part of the Caucasian Albania, a subject principality of the Sasanian Empire, following the Peace of Acilisene. From the 7th to 9th centuries, it fell under Arab control.
Source: Wikipedia — Artsakh (historical province) (CC BY-SA 4.0)