Naruhiko Higashikuni (Higashikuninomiya)

https://en.wikipedia.org/wiki/Prince_Naruhiko_Higashikuni

General Prince Naruhiko Higashikuni (東久邇宮稔彦王, Higashikuni-no-miya Naruhiko Ō, 3 December 1887 – 20 January 1990) was a Japanese imperial prince, a career officer in the Imperial Japanese Army and the 30th Prime Minister of Japan from 17 August 1945 to 9 October 1945, a period of 54 days. An uncle-in-law of Emperor Shōwa twice over, Prince Higashikuni was the only member of the Japanese imperial family to head a cabinet and was the last general officer of the Imperial Japanese military to become Prime Minister. He was the founder of the Chiba Institute of Technology. He was one of the longest-lived members of any royal family.