The Registan ensemble was considerably reconstructed in the 17th century by order of Jalangtush Bahadur, a military leader and politician. Sher-Dor Madrassah and the Tilla-Kori mosque were built at the construction place of the 15th century. Sher-Dor Madrassah was constructed during 1618-1636 on the ruins of Ulugbek’s khanaka which had fallen apart two centuries before. It repeated Ulugbek’s Madrassah and by architectural principle «kosh» (pair) is strictly put with it on one axis.
The sizes of court yard and the portal of Sher-Dor Madrassah and UIugbek Madrassah are almost identical. In the inscription on the portal there is the name of the architect Abd al-Jabbar and masters of the decor Muhammad Abbas Samarkandi As the decor of both madrassah, historical facts, excerpts from the Koran, Prophet’s dictums with vegetative ornamentation are widely used.