Bayt Radm's fortress served as a minor stronghold from the end of the 12thcentury. Its first mention in the Ghayat al-amani of Yahya ibn al-Husayn is in connection with the events of the year 1203. In 1244, it was one of only three forts in the Sanaa area—the other were Thula and Dhu Marmar—that remained uncontrolled by the first Rasulidsultan, Nur al-Din Umar. There is no indication, however, that Bayt Radm was anywhere near as important as either of the other two forts.