Bayt Radm's fortress served as a minor stronghold from the end of the 12th century. Its first mention in the
Ghayat al-amani of
Yahya ibn al-Husayn is in connection with the events of the year 1203 (599
AH). In 1244 (642 AH), it was one of only three forts in the Sanaa area—the other were
Thula and
Dhu Marmar—that remained uncontrolled by the first
Rasulid sultan,
Nur al-Din Umar. There is no indication, however, that Bayt Radm was anywhere near as important as either of the other two forts. == References ==