Satellite view of Rumkale (Google Earth) (click on the image to expand)

Samosata → Şamşat. This place was flooded by the Atatürk Dam Lake; the name was transferred to a new settlement nearby, presently the centre of Şamşat district of Adıyaman province

I'z O'ghlú → İzolu, Kuşsarayı (village in Baskil district, Elazığ province, on the Euphrates, east of Malatya

Shiró → Doğanyol (centre of Doğanyol district, Malatya province)

Rúm Ḳal'ah → Rumkale, castle on a prom0ntory in the Euphrates, north of Halfeti (Şanlıurfa province). The castle lies within the borders of Gaziantep province (see photo below)