This mausoleum is the mausoleum of Gulshah Hatun, the wife of Mehmed the Conqueror, and the mother of Shehzade Mustafa. It is known that it was built when Guishah Hatun, who died in 1487, was still alive. There are two marble tombs inside this mausoleum; it is known that the tomb right at the entrance is the one of Gulshah Hatun.
The identity of the person buried in the other sarcophagus, however, is unknown. This mausoleum, which was thoroughly restored by Bursa Metropolitan Municipality between 2013 and 2014, is located within a site, which was inscribed on the UNESCO World Heritage List in 2014.