The area behind the facade has been excavated. These excavations have revealed the foundations of a hospice to the left of the madrasa, mirrored on the right by another building, which may have been a bath.
Sources:
Akurgal, Ekrem, and Léo Hilber. The Art and architecture of Turkey, 92. New York: Rizzoli, 1980.
Aslanapa, Oktay. Turkish art and architecture, 133-134. New York: Praeger Publishers, 1971.
Gabriel, Albert. Monuments Turcs d'Anatolie, 2:151-152. Paris: Editions de Boccard, 1931-1934.
Sinclair, T. A. Eastern Turkey: an architectural and archaeological survey, 2:303. London: Pindar Press, 1989.
Stierlin, Henri, and Anne Stierlin. Turkey, from the Selçuks to the Ottomans, 48-49. Köln, Germany: Taschen, 1998.