Since he is related by blood with Shimazu family (Hisamitsu SHIMAZU, the family head of Echizen [also called Shigetomi]-Shimazu family and the Father of Satsuma Domain, who became the family head of Tamazato-Shimazu family with 100,000 Koku [approximately 18 million liters of crop yield] after the Meiji Restoration, conferred the title of Duke under the Peerage Law to be the first head of Shimazu Duke family), he may feel warm affection for Okinawa Prefecture, which is shown in several pieces of Ryuka Traditional Okinawa Poem he composed before.
かつて琉球を征服した島津家（越前島津家・重富島津家当主・薩摩藩国父島津久光、明治維新後玉里島津家当主として10万石、華族令において公爵、島津久光公爵家初代当主）の血を引いていることから、沖縄への思いは深く、琉歌を幾つか詠んでいる。