The site of Keijuin Temple was arranged and designated as a referable mausoleum according to the discussion in the extraordinary investigation committee of the Imperial mausoleums and tombs (1935 – 1944), which followed the examples of designated mausoleums that were not located where the dead were buried, such as those of Emperor Kanmu and Emperor Antoku.
臨時陵墓調査委員会（1935年－1944年）で審議の結果、桓武天皇や安徳天皇など埋葬地以外が陵に治定されている前例を踏まえ、その跡地を整備、陵墓参考地に指定された。