A small but strategically vital Arab kingdom centered on Edessa in Upper Mesopotamia, ruled by the Abgarid dynasty, which oscillated between Parthian/Sasanian and Roman suzerainty and is notable as one of the earliest kingdoms to adopt Christianity.
Incorporated as a Roman province (colonia) c. 214 CE when Emperor Caracalla deposed Abgar IX Severus; the Abgarid dynasty continued in a purely nominal capacity until c. 242 CE, after which direct Roman rule was complete.
The atlas holds 2 border frames for Osroene (Kingdom of Edessa) — the shape you scrub through changes in 132 BC · 73.
The primary epigraphic source collection for Osroene's history and culture; confirmed via Open Library author page OL1136749A and STYX Publications.
Era/regional study of Roman client kingship that frames Osroene/Edessa's oscillation between Parthian/Sasanian and Roman suzerainty.