The remains of the city are located in the modern suburb of Örenli (previously the village of Pirin or Pirun) in the northern section of Adıyaman, Turkey.
In antiquity, Perrhe was one of the four core cities of the kingdom of Commagene mentioned in inscriptions, along with Samosata, Marash and Doliche.
On account of a profuse spring, which was already famous in ancient times and which now issues from a Roman fountain in the middle of the town, Perrhe was an important staging post for travellers over the mountains.
[3] Friedrich Karl Dörner and Rudolf Naumann carried out investigations of the village of Pirin and the necropolis in 1938 in the course of their expedition to Commagene.
They found only a little spolia and a recently exposed floor mosaic, of which a single field consisting of an abstract pattern and an amphora with handles survived.
Engelbert Winter of Münster University's Research Centre for Asia Minor [de] has worked on the epigraphic finds and the relief at the museum in collaboration with Margherita Facella of Pisa and Charles Crowther of Oxford.
Joseph Marie Henri Belleau OMI held the titual bishopric as Apostolic Vicar of Baie de James (Canada) from 1939 to 1976.