Most treasures in the Nara Shosoin Treasure House, which were originally treasures of the Kyushu dynasty, and were contributed by the Shosoin Treasure House in Chikugo Province, Kyushu in 738.
奈良正倉院の宝物の殆どは天平10年（738年）に九州筑後の正倉院から献上されたものであり、元は九州王朝の宝物である。