Personnalité historique

Date Tanemune

Head of the Date clan (1514-1548) · Shugo of Mutsu Province (1522)

Date Tanemune (1488-1565), fourteenth head of the Date clan, was one of the first great daimyō of southern Tōhoku. Appointed shugo of Mutsu in 1522, he moved the clan's seat in 1532 from Yanagawa Castle to Koori-Nishiyama Castle, which he had built to its present scale, and in 1536 he promulgated there the Jinkaishū, one of the most comprehensive seigneurial codes of the Sengoku period. His policy of marriage alliances and his plan to have his son Sanemoto adopted by the Uesugi provoked in 1542 the revolt of his eldest son Harumune, who confined him at Nishiyama and triggered the Tenbun War. At the peace of 1548, he ceded leadership of the clan to Harumune and retired to Marumori Castle.

Portrait de Date Tanemune
Naissance1488
Décès16 juillet 1565
FonctionHead of the Date clan (1514-1548) · Shugo of Mutsu Province (1522)
MaisonClan Date
ÉpoqueSengoku period
Histoire & patrimoine

The Jinkaishū, code of a domain

Promulgated in 1536, the Jinkaishū is among the most extensive seigneurial codes (bunkokuhō) of the Sengoku period. Its Article 71 mentions 'Nishiyama', a sign that Koori-Nishiyama Castle and its castle town then formed the centre of the Date domain.

Château de Koori-NishiyamaChâteau de Koori-Nishiyama
Frise chronologique

Repères dans sa vie

1488

Born, eldest son of Date Hisamune.

1514

Succeeds his father as head of the Date clan.

1522

Appointed shugo of Mutsu Province.

1532

Moves his seat from Yanagawa to Koori-Nishiyama Castle, built to its present scale.

1536

Promulgates the Jinkaishū seigneurial code.

1542

Confined at Nishiyama by his son Harumune; start of the Tenbun War.

1548

Peace; he cedes leadership of the clan to Harumune and retires to Marumori Castle.

1565

Dies on 16 July.

Patrimoine associé

Les châteaux liés à cette personnalité

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Réseau historique

Personnalités liées

Portrait de Date Harumune
Date HarumuneEldest son and successor, adversary in the Tenbun War→
Portrait de Date Hisamune
Date HisamuneFather→
Portrait de Date Sanemoto
Date SanemotoSon, subject of the Uesugi adoption plan→
Approfondir

Date Tanemune dans l’histoire

The Tenbun War

In 1542, his eldest son Harumune, opposed in particular to the plan for his brother Sanemoto to be adopted by Uesugi Sadazane, seized him and confined him at Nishiyama Castle. The conflict divided the clan and the lords of southern Tōhoku for six years; the peace of 1548 required the dismantling of the castle.

Documentation

Sources de la fiche

Cette synthèse croise plusieurs sources pour documenter les lieux, événements et relations historiques.