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SUBJECT FILE NO. SA-0004

BUSHI ARCHIVE

Date Masamune

Date Masamune

Lord of Sendai

SECTION I -- SUBJECT PROFILE

NameDate Masamune
EnglishDate Masamune
OriginJapan
Lifespan1567–1636
GenderMale
Century17th C.
Clan / RoleDaimyo
TitleLord of Sendai

SECTION II -- OVERVIEW

Born in 1567 in Mutsu Province, Masamune lost his right eye to smallpox as a child, earning the epithet Dokuganryū — the One-Eyed Dragon.By age 24 he had subjugated most of southern Tōhoku through ruthless campaigns at Hitotoribashi (1585) and Suriagehara (1589), only to be checked by Hideyoshi's overwhelming arrival at Odawara.

He served the Toyotomi reluctantly, then sided with Ieyasu at Sekigahara, receiving the 620,000-koku Sendai domain.He founded Sendai city in 1601, dispatched the Keichō Embassy under Hasekura Tsunenaga to Rome via Mexico (1613–1620) — the first formal Japanese mission to Europe — and patronized Christianity, scholarship, and the arts even as the Tokugawa turned isolationist.

SECTION III -- CHRONOLOGY

1567Born in Mutsu Province
1584Becomes head of the Date clan
1589Battle of Suriagehara — dominates Tōhoku
1600Sides with Ieyasu at Sekigahara
1601Founds Sendai city
1613Dispatches the Keichō Embassy to Europe
1636Dies in Edo

SECTION IV -- NOTABLE STATEMENTS

Rectitude carried to excess hardens into stiffness; benevolence indulged beyond measure sinks into weakness.

SECTION V -- FIELD NOTES

[A]The Crescent Helmet

Masamune's signature kabuto bore a towering crescent moon — a deliberately flamboyant silhouette that became one of the most recognizable images of the samurai aesthetic.

SECTION VI -- LEGACY & IMPACT

Masamune transformed Tōhoku from a provincial backwater into a cultural and economic center, founded the modern city of Sendai, and authored Japan's first transoceanic diplomatic mission. His patronage helped preserve learning and the arts under the early Tokugawa.

SECTION VII -- MAJOR DEEDS

  • [01]Battle of Suriagehara (1589)
  • [02]Foundation of Sendai (1601)
  • [03]Keichō Embassy to Rome (1613–1620)
  • [04]Patronage of Zuihōden mausoleum architecture

SECTION VIII -- REFERENCE MATERIALS

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