It houses the sarcophagus of Mehmet I (ruled 1413 21), itself ornately decorated with patterned Iznik tiles.
Work on the sarcophagus began in 1418.
mnli hypothesis: Work on the sarcophagus began in 1418. premise: It houses the sarcophagus of Mehmet I (ruled 1413 21), itself ornately decorated with patterned Iznik tiles.