Empress Kōjun
was a member of the Japanese Imperial Family and a "field marshal" in the Imperial Japanese Army. An uncle-in-law of Emperor Shōwa, an uncle of his consort, Empress Kōjun, and the father-in-law of Crown Prince Euimin of Korea, Prince Nashimoto was the only member of the Imperial Family arrested for war crimes during the American occupation of Japan following the Second World War.