About Jidayu Koizumi
Lived 1539 – 1624 (aged 84–85). Jidayu Koizumi was a Japanese samurai.
Jidayu Koizumi (小泉次大夫, 1539 - 1624 January 27) was the Secretary of Water and Hatamoto magistrate of the early Edo period.
Koizumi was responsible for creating the Rokugo and Nikaryo canals along the Tama River in order to irrigate surrounding farmland.
Other engineering projects created by Koizumi can be found in Jidayubori park along the Nogawa River.
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Important facts
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Contemporaries
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Frequently asked questions
Who was Jidayu Koizumi?
samurai
When was Jidayu Koizumi born?
Jidayu Koizumi was born in 1539.
When did Jidayu Koizumi die?
Jidayu Koizumi died on 8 December 1624.
What was Jidayu Koizumi's occupation?
Jidayu Koizumi was a samurai.
What nationality was Jidayu Koizumi?
Jidayu Koizumi was Japanese.
Sources & further reading
Cite this page
APA: Biography.guide. (2026). Jidayu Koizumi. https://biography.guide/jidayu-koizumi/
MLA: "Jidayu Koizumi." Biography.guide, https://biography.guide/jidayu-koizumi/.
Chicago: "Jidayu Koizumi." Biography.guide. https://biography.guide/jidayu-koizumi/.
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