not survive, or was not erected. Shrine Near the shah's mosque in the lower courtyard, in the wall separating the lower platform from the upper one, is located the building of the Shirvanshahs burial vault, the so-called "Turbe". This building is located directly opposite the entrance, overlapped by a pointed vault. Smooth wall of the facade is lined with Baku limestone with a careful fit of the seams. Above the building, there is a richly decorated portal to the tomb. This portal repeats the compositional reception of the Divan-khan portal, but in comparison with the latter it is somewhat easier to interpret (the stalactite arch consists of only four rows of stalactites, the side walls are smoothly solved, no niches, and only tympanum of the arches, a number of inscriptions in the font "nash" – Koranic (Surah XII, verse 92nd) and hadith. On the right and left of the portal's lancet aperture in two onion-shaped medallions are inscriptions with the name of the builder-architect of the tomb. In each medallion, the same inscription is repeated twice (in direct and mirror image) and contains the following words: Allah Muhammad Ali (an architect). Judging by the name, the architect was a Shiite. Above the ornamentation of the tympanum of the stalactite arch there is a strip with an inscription of a religious nature. In the tympanas, medallions are also arranged on each side, also with an inscription. The inscription above the entrance to the portal dates the construction of the burial vault 839 (1435/36) and reports that the tomb was built by Shirvanshah Halilullah for his mother and son. The portal leads to the canopy, on the right and left side of which are located associated with the opening of small rooms, probably intended for ministers of worship. The canopies lead to the main hall, which is cross-shaped in plan, and its central part is covered with a dome resting on the vaults of the branches of the cross and stone walls through a system of spherical sails. It is interesting that outside the stone dome was once covered with turquoise glaze. During the archaeological excavations in the tomb were found fragments of architectural details of tombstones in the hall, as well as a number of burials of members of the family of Halilullah. So, archaeological works in 1946 under the wooden floor of the tomb, a crypt was found with five