Quasr al_Hallabat is a another former Roman castellum (built 111-114 under Trajan or Hadrian and under the reign of Caracalla turned into a proper fortress under Legate Phirnius Julianus) turned Umayyad castle. Under Justinian it was renovated. A more ancient Nabatean site seems to have been here also. Around the start of the 8th century the Umayyads took over, before then the site was a Christian monastery for a short while, with a basilica, but after the invasion by the Persians the place had been unoccupied. A mosque stands next to the main buildings. It served the resident and his courtiers.

For a clear view of the area covered use the map view.