The year of construction is unknown, but in 813 when Emperor Junna's Kotaitei (the younger brother of an Emperor sho is heir apparent) was taking up the reins, his older brother Emperor Saga visited this place called Nanchi-in Palace at that time.
建築された年代は不明であるが、淳和天皇の皇太弟時代の弘仁4年（813年）に実兄の嵯峨天皇が当時南池院と呼ばれていたここに行幸している。