Old Khorezm has been the cradle of science, culture and enlightenment for centuries, blessed and holy by the saints who lived on this land. The article provides information about Sheikh Najmiddin Kubro (1145-1221), who lived during the reign of Khorezmshah Alovuddin Muhammad (1169-1120) and was the founder of the Kubro sect of Sufism, the teacher and pir of Jalal al-Din Khorezmshah. The great son of Khorezm, who surprised Jahangir, as formidable as Genghis Khan, arousing in him anger and envy, accepted martyrdom in defense of his homeland from enemies, and was buried in the house where he was a teacher, in 1221. The unparalleled courage and human qualities of Najmuddin Qubro and Jalal al-Din Khorezmshah are the fruits of the spiritual milieu of this period. Sheikh Najmuddin Qubro is one of the most notable figures in human history, his name has been a symbol of patriotism in the East for centuries.