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Date Harumune

1519 – 1578

Daimyo

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About Date Harumune

Lived 1519 – 1578 (aged 58–59). Date Harumune was a Japanese samurai.

was a Japanese daimyō of the Sengoku period. Harumune was the fifteenth head of the Date Clan. He was the father of the sixteenth head, Date Terumune, and the grandfather of Date Masamune, the seventeenth head of the Date Clan.

Biography A son of Date Tanemune, the fourteenth hereditary head of the Date Clan in Mutsu Province. Harumune's childhood name was Jiro (次郎). Harumune was intended to become head of the clan upon his father's death. However, Tanemune's method of consolidating power through the political marriages of his children led to the Tenbun War (天分の乱), a revolt led by Harumune. At first, Tanemune had the advantage but Harumune ultimately succeeded his father as leader of the clan. Harumune then moved to Yonezawa and worked to settle the aftermath of the war.

As a special honor, Ashikaga Yoshiharu gave permission for Harumune to use one ideograph (haru-) of his name. Additionally, the Ashikaga shogunate gave Harumune power and responsibilities as tendai of Mutsu.

Family

Father: Date Tanemune Mother: Teishin'in Wife: Kubohime (1521–1594) Children: Iwaki Chikataka (d. 1594) by Kubohime Onamihime (1541–1602) married Nikaido Moriyoshi by Kubohime Date Terumune by Kubohime daughter married Date Sanemoto (brother of Harumune) by Kubohime daughter married Koyanagawa Morimune by Kubohime daughter married Satake Yoshishige by Kubohime Rusu Masakage by Kubohime Ishikawa Akimitsu by Kubohime Hikohime married Ashina Morioki later married Ashina Moritaka by Kubohime Kokubu Morishige by Kubohime Sugime Naomune (d. 1584) by Kubohime

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Important facts

Born
1519
Birth century
Occupation
Nationality
Positions held
Daimyo

Family & relationships

Child
Date Terumune
Child
Ishikawa Akimitsu
Child
Kokubu Morishige
Child
Onamihime
Child
Rusu Masakage

People in Date Harumune's life

Named in this biography and alive at the same time

Contemporaries

People whose lives overlapped Date Harumune's

Frequently asked questions

Who was Date Harumune?

daimyo

When was Date Harumune born?

Date Harumune was born in 1519.

When did Date Harumune die?

Date Harumune died on 12 January 1578.

What was Date Harumune's occupation?

Date Harumune was a samurai.

What nationality was Date Harumune?

Date Harumune was Japanese.

Sources & further reading

· Wikipedia: Date Harumune

· Wikidata: Q5227524

· DBpedia: Date Harumune

Cite this page

APA: Biography.guide. (2026). Date Harumune. https://biography.guide/date-harumune/

MLA: "Date Harumune." Biography.guide, https://biography.guide/date-harumune/.

Chicago: "Date Harumune." Biography.guide. https://biography.guide/date-harumune/.

Data last updated: 2026-09-24 · Spot an error? Report a correction.

Portrait: Wikimedia Commons · author & licence

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