Faculty of Medicine Siriraj Hospital, Mahidol University is the oldest and largest medical school and oldest of any kind of university faculty in Thailand. The faculty is now part of Mahidol University. Founded in 1889, the faculty was run in co-operation with Siriraj Hospital, the first public hospital in Thailand, which provided the students the clinical experiences. The faculty's campus and hospital is in the Bangkok Noi district, Bangkok, on the former Rear Palace.