Church16 images Abbey of Tiron (now Thiron), founded in 1109. Construction of the monastery started in 1115. A military school was installed in the monastery in 1630. The abbey… Original map of the abbey. Military school, 1630, and abbey church. Military school, 1630, and abbey church. Military school, 1630. Sequoia. Classrooms, 17th century. Abbey staff, enamel, 12th century. Customs of the Perche, 1621. Classroom. Textbooks. Sully-sur-LoireTours Labels