Mahmud ibn Sa'd ( ) was an architect who lived in the 13th–14th centuries. Among his works are old Bibi-Heybat Mosque (demolished in 1936), Nardaran Fortress and Molla Ahmad Mosque in Baku's Old City, all three in the modern-day Republic of Azerbaijan.Ашурбейли Сара. История города Баку: период средневековья (Азернешр, 1992)
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