The Sifahidiye Medrese (I got the name from a book, I think Şifaiye Medresesi may be more common) dates from 1217, and was built for sultan Izzettin Keykavbus I, it is one of the oldest buildings in the city. When he died in 1220 an Azeri architect designed the porch where Izzettin is buried. The whole complex was being restored on a grand scale in June 2011.