The Rabadh Castle is an Islamic military castle built by Saladin’s nephew in 1183–1185 CE, during the rule of Saladin. It served as a strategic military post overlooking the Jordan River Valley and defending against the Crusaders. It also protected the iron mines around Ajloun, needed for military use. The castle has five towers, vaulted rooms, a surrounding moat, arrow slits, and other defensive features.
A hill summit above Ajloun at the GPS coordinates: 32.3250°, 35.7275°. Iron debris from the smelting process can be found on the same hill right before reaching the castle. The iron mines are at the al-Warda caves near Ajloun.