Gulbahar Hatun Mosque The Gülbahar Hatun Mosque, commissioned by the Ottoman Sultan Yavuz Sultan Selim in honor of his mother Gülbahar Hatun, was completed in 1514 in Trabzon, Turkey. The mosque was once part of a larger complex that included a madrasa, imaret, mektep, and tomb. Unfortunately, only the tomb built for Gülbahar Hatun has survived the test of time. The complex was constructed in the early 16th century and was equipped with schools, soup kitchens, and bathhouses for the community. Gülbahar Hatun was a philanthropic figure who was instrumental in the construction of several charitable Ottoman foundations. However, the other buildings in this complex were not preserved, leaving only the mausoleum standing today. The mosque features a five-section narthex, followed by a harem area with a large dome and eastern/western zawiya. The stylized lozenge motifs on the marble column capitals in the narthex are notable, while the marble mihrab and mimber of the mosque are decorated with intricate vegetation patterns and muqarnas cassettes. The entrance gate of the mosque bears inscriptions indicating that it underwent repairs in 1885, while the interior of the mosque is beautifully decorated and likely dates back to the same period. It is renowned as one of Trabzon's most significant mosques and serves as a popular gathering spot for locals.