Construction of Edo Castle by Ōta Dōkan
- When
- 1457
- Where
- Edo, Toshima District, Musashi Province
- Episodes
- 1
Ōta Dōkan constructed Edo Castle in 1457 in Edo, Musashi Province, for Uesugi Sadamasa. This flatland fortress, built over earlier fortifications, established the foundation for the castle town that later became modern Tokyo.
Episodes
Background and detail
Construction and Patronage. In 1457, Ōta Dōkan built Edo Castle, a flatland fortress in Edo, Toshima District, Musashi Province. He is credited with designing and building the structure for Uesugi Sadamasa, utilizing and expanding upon fortifications previously established by Edo Shigenaga.
Historical Significance. Dōkan is regarded as the founder of the castle town that developed around this Ōnin era fortress. The construction laid the groundwork for urban settlement, allowing merchants to establish themselves in the area that eventually evolved into modern Tokyo.
People involved
- Ōta Dōkan · Architect and builder
- Uesugi Sadamasa · Patron
Sources
- Edo Castle Wikipedia, revision of 2026-09-14
- Ōta Dōkan Wikipedia, revision of 2026-06-15
Machine-drafted from the cited Wikipedia passages and checked by a reviewing model, not by a human editor. Every passage cites the revision it was written from; dates and places follow those passages.