Thomas A. Carlson (ed.), "Qalʿat Najm" in last modified December 9, 2016, http://syriaca.org/place/634 Qalʿat Najm Qalat Naym قلعة النجم Qalat Najm Qal‘at Najm A medieval fortress on the Euphrates near Mabbug. Attestation of name قلعة النجم in the Muʿjam al-buldān of Yāqūt al-Ḥamawī. http://syriaca.org/place/634 http://en.wikipedia.org/wiki/Qal'at_Najm http://www.csc.org.il/db/browse.aspx?db=SB&sL=Q&sK=Qalat Naym&sT=keywords The Comprehensive Bibliography on Syriac Christianity Qalat Naym Muʿjam al-buldān Yāqūt al-Ḥamawī IV:444