Ruler · 1880 – 1950

Kuniaki Koiso

Lived 1880 – 1950; politician, military personnel. Governor-General of Chōsen of Korea under Japanese rule, 1942 – 1944.

For the full story, the article on Wikipedia (CC BY-SA 4.0); this page holds what the record says of the reign.

Lived: 1880 – 1950; 70 years
In office: 2 years; one reign
Lines: 1; Korea under Japanese rule
Left it: resigned; the ruler's own article

Governor-General of Chōsen

Korea under Japanese rule · the 10th of 11 dated reigns · 1910 – 1945

6 before

Saitō Makoto1929 – 1931

Ugaki Kazushige1931 – 1936

Jirō Minami1936 – 1942

Kuniaki Koiso1942 – 1944

Nobuyuki Abe1944 – 1945

left alive by a regular roadending not on recorda second row: a reign that began before the last had ended — rival claimants, or a shared thronethis entry

Reigned 1942 – 1944 · 2 years · came to it aged 62

Left it: resignedread from the ruler's own article

Koiso resigned in April 1945 when American forces invaded Okinawa and his demands to be included in military decisions were rejected, the same date the Imperial Japanese Navy flagship Yamato was sunk by American aircraft during Operation Ten-Go.

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Kuniaki Koiso in the atlas: the article, every line they sat in, and the map in their years.
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Wikidata Q315549 (CC0) · the reigns from Wikidata's P39 terms, the rulers' own articles read by grammar (sentences quoted above, CC BY-SA 4.0) and Kokkonen & Sundell where they code the line · data built 2026-10-06 · Pastlas v2.9.1, by Oleh Voronko. The published atlas and its data are for non-commercial use.