The mosque of Hudavendigar is a two-story building comprising a mosque convent on the ground floor with a madrasa on the upper level. Its construction was ordered by Murad I in 1365 and completed in 1385. The ground floor is composed of a five-bav porch, a vestibule that gives access to the interior on the south and to staircases on the sides. The interior contains a main space of four iwans around a central hall and six rooms. On the upper level, there is a five-bay gallery directly above the porch, a large room beiween the two staircases, eight madrasa cells on each side and a small room above the mihmb on the south. The large room, the cells, and the corridors are barrel vaulted. All arch-openings of the gallery have a single column at their centres dividing them into two units, each topped by an arch. In the centre of the main hall there is a fountain inside a pool. The dome, which rests on a simple sixteen-sided belt on pendentives, is 11.00 m. in diameter.