Some of treasures were taken away to foreign countries, and among such treasures, a painting of Shingon-hasso-zo (painting of the eight founders of the Shingon sect), which was attributed to Shinnen, was bought by the Ehnological Museum of Berlin, but it was reduced to ashes because of the Battle of Berlin, at the very end of World War II.
海外に流出した宝物の内、ベルリン民俗学博物館が購入した真然筆と伝えられる真言八祖像などは第二次世界大戦末期のベルリン攻防戦で烏有に帰した。