Ōta Dōkan

Biographical Overview & Key Facts

Subject:

Ōta Dōkan

Role / Field:

Samurai lord, poet, and architect credited with founding Edo Castle in 15th-century Japan.

Born:

1432

Died:

1486-08-25

Century / Era:

1432s Historical Era

Database Source:

2Day Chrono-Wiki & Wikipedia CC BY-SA 4.0

Origins & Early Life

Ōta Dōkan (太田 道灌; Japanese pronunciation: [oː.ta (|) doꜜː.kaɴ], 1432 - August 25, 1486), also known as Ōta Sukenaga (太田 資長), was a Japanese samurai lord, poet and Buddhist monk. He took the tonsure as a Buddhist priest in 1478, and he also adopted the Buddhist name, Dōkan, by which he is known today. Dōkan is best known as the architect and builder of Edo Castle (now the Imperial Palace) in what is today modern Tokyo; and he is considered the founder of the castle town which grew up around that Ōnin era fortress. The Ōta clan originated in 15th-century Musashi Province. They claimed descent from Minamoto no Yorimasa, and through that branch of the Minamoto they claimed kinship with the Seiwa-Genji.

Career & Major Achievements

The feudal progenitor of the clan name, Ōta Sukekuni, established himself at Ōta in Tanba Province, and he adopted this location name as his own. He traced his lineage as a fifth-generation descendant of Yorimasa. In a special context created by the Tokugawa shogunate, the Ōta clan were identified as tozama or outsiders, in contrast with the fudai or insider daimyō clans which were hereditary vassals or allies of the Tokugawas. In, 1638, Ōta Sukemune, the grandson of Ōta Yasusuke, was granted Nishio Domain in Mikawa Province; and then, in 1645, he and his family was transferred to Hamamatsu Domain (35,000 koku) in Tōtōmi Province. Yasusuke's descendants were moved several times by shogunate decree, residing successively in 1687 at Tanaka Domain in Suruga Province, in 1703 at Tanakura Domain in Mutsu Province, and in 1728 at Tatebayashi Domain in Kōzuke Province.

Enduring Legacy & Impact

Then, in the period spanning the years 1746 through 1868, this branch of the Ōta clan established itself at Kakegawa Domain (53,000 koku) in Tōtōmi. The head of this clan line was ennobled as a "Viscount" in the Meiji period. Although born into the Ōta clan—and claimed by the Ōta as a clan celebrity—Dōkan served as a vassal of the Ōgigayatsu branch of the Uesugi clan which occupied land in the Kantō region of Honshū. Dōkan is credited with designing and building Edo Castle for Uesugi Sadamasa (1443–1494) over the fortifications Edo Shigenaga had earlier built. Work on the defensive walls and moats began in 1457; and he took the name Dōkan the following year.

Chronological Milestones & Life Events

1. 1432: Birth of Ōta Dōkan — Samurai lord, poet, and architect credited with founding Edo Castle in 15th-century Japan.
2. 1443: 1443 Milestone — Dōkan is credited with designing and building Edo Castle for Uesugi Sadamasa (1443–1494) over the fortifications Edo Shigenaga had earlier built.
3. 1457: 1457 Milestone — Work on the defensive walls and moats began in 1457; and he took the name Dōkan the following year.
4. 1478: 1478 Milestone — He took the tonsure as a Buddhist priest in 1478, and he also adopted the Buddhist name, Dōkan, by which he is known today.
5. 1486 (1486-08-25): Passing & Historical Legacy — Ōta Dōkan passed away on 1486-08-25, leaving an enduring historical legacy.
6. 1638: 1638 Milestone — In, 1638, Ōta Sukemune, the grandson of Ōta Yasusuke, was granted Nishio Domain in Mikawa Province; and then, in 1645, he and his family was transferred to Hamamatsu Domain (35,000 koku) in Tōtōmi Province.
7. 1687: 1687 Milestone — Yasusuke's descendants were moved several times by shogunate decree, residing successively in 1687 at Tanaka Domain in Suruga Province, in 1703 at Tanakura Domain in Mutsu Province, and in 1728 at Tatebayashi Domain in Kōzuke Province.
8. 1746: 1746 Milestone — Then, in the period spanning the years 1746 through 1868, this branch of the Ōta clan established itself at Kakegawa Domain (53,000 koku) in Tōtōmi.

Historical Fact-Check Quiz: Ōta Dōkan

True or False: “Did Ōta Dōkan build the original, massive stone walls of Edo Castle?”

Answer (FALSE ❌): The initial defensive works were described as only grassy embankments, though the moats themselves were extensive for that time period.

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Frequently Asked Questions about Ōta Dōkan