Ajloun Castle rises above the green uplands of northern Jordan, on a ridge associated with Jabal Bani Auf and the town of Ajloun. Its position is the first clue to its purpose. From the heights, a garrison could observe approaches through the Kafranga, Rajib and al-Rayyan valleys and watch routes linking the Jordan Valley with the highlands. The Jordanian Ministry of Interior describes the site as a strategic point facing Crusader strongholds and controlling movement between Syria and southern Jordan.
The castle is also known by its Arabic name, Qal’at ar-Rabad, often translated as the Castle of the Suburb or Castle of the District. The Department of Antiquities records its construction in 580 AH, or 1184 CE, under Izz al-Din Usama, a commander of Saladin. That date places the fortress within the Ayyubid period, when control of roads, passes and regional approaches mattered as much as the defense of a single town. The setting makes that military calculation legible even before visitors enter the building.