According to the construction inscription on the crown gate, it was built in 1312-13 M. Anatolian Seljuk Ruler IV. It was built by Hüdavend Hatun, the daughter of Rukneddin Kılıç Aslan. The mausoleum, which has survived some repairs, preserves its original feature. The building belongs to the group of tombs with a single storey and octagonal plan. In the construction of the building, the yellowish colored thin aspect trachyte stone; White marble was used in the jambs, arches and lintels of the doors and windows, and the belts and inscriptions on the pulley. With the decorations on the pointed arch pediments on the pulley, the figured decorations on the windows and the window grids, the finer textured and harder reddish stone; Black cut stone is used in the deaf pointed arches in the dome drum of the interior, and very rich material is included. A very clean and meticulous workmanship is seen in the construction of the building. The tomb rises as an octagonal body on an octagonal base and is turned into a hoop with Onat edges at the top and is closed with a dome from the inside and an eight-sided pyramidal cone from the outside. The tomb is special in terms of its vegetal, geometric and especially figured plastic decorations as well as in terms of structure.

Source:

https://nigde.ktb.gov.tr/TR-74359/turbeler.html