Port · The Kamakura house and its housemen · as at first light, 1 January 1200

Mutsuura

Mutsuura lies at the head of the bay of Kanazawa on the Musashi side of the Sagami border, beyond the hills east of Kamakura.

It is a sheltered anchorage where ships too deep for the open beach at Yuigahama put in, and a salt-making shore; a track runs over the hills to the Kamakura valley (the Asahina cutting is of 1240, later). Its goods are rice, salt, fish, timber and cloth from the Bōsō, Izu and the Ise bay, and the Miura peninsula's seamen use it. The campaign board spells it Mutsura and puts it in Sagami; the place is Mutsuura in Musashi, today's Kanazawa ward of Yokohama.

Shōmyōji (1258) and the Kanazawa library (about 1275) of the Hōjō branch that takes the place's name are much later.

Who holds it

Title
Local governor or lord
Confidence
low

No holder is dated for 1 January 1200.

Lord in 1200

Kamakura's Mandokoro for the dues; the Miura as the boat-warriors of the coast; the stewardship holder is not pinned

Council

Not known: the harbour is run by Kamakura's officers and the boatmen.

Communities

Boatmen, fishermen, salt-makers, warehouse-keepers.

Militia

The Miura boat-warriors; no numbers.

Trade and crafts

Salt, fishing, shipping of Kamakura's goods and warehouses; no figure.

What the year holds

What happened next, if nothing in play changes it. Each event carries what it depends on and what would stop it.

  1. 1258 and 1275Shōmyōji and the Kanazawa library are founded by the Kanazawa Hōjō (far later).Depends on: Hōjō family history Stopped by: Not known: no source says what would prevent it.

Where the sources disagree

  • The campaign board entry id 'mutsura' (Sagami): the place is Mutsuura in Musashi.

Evidence: Recollection and the campaign board; no page on the place was opened.

"The campaign board" is OMNIA's working map. These notes record where its earlier claims were checked against the sources.

On the map: The near land is drawn as seeds round the town; rights over men are scattered.

Primary sources for Kamakura regime

Chronicles, registers, sagas and inscriptions written in or near 1200 that cover this entry. Each has its own page with editions, translations and where to read it.

  • Hundred Times Refined Extracts: court annals (late thirteenth century, from court diaries). Short dated annals of the imperial court excerpted from courtiers' diaries, among them the Gyokuyo and the Meigetsuki. Read online
  • Mirror of the East, Anonymous; compiled by officials of the Kamakura shogunate (compiled about 1300 from the shogunate's records, diaries and family documents). The Kamakura house's own chronicle, in daily entries. Read online
  • Jottings of a Fool: an interpretative history of Japan, Jien (慈円) (about 1219 to 1220, revised to about 1223). A history by Kujo Kanezane's brother, head of the Tendai school and the leading churchman of the court, written to explain the fall of the Kujo and the rise of the warriors as the working of principle (dori). Read online
  • Diary of the Inokuma Regent: the diary of Konoe Iezane, Konoe Iezane (近衛家実) (1197 to 1218, as a daily diary). The diary of the regent's heir, aged twenty-one in 1200 and already a senior courtier under his father Konoe Motomichi, who was regent (sessho) for the child emperor Tsuchimikado. Read online
  • Leaves of Jade: the diary of Kujo Kanezane, Kujo (Fujiwara) Kanezane (九條兼實) (1164 to 1200, as a daily diary). The diary of the former regent, Yoritomo's ally at court, who had been driven from power in the Kenkyu purge of 1196 and lived in retirement in 1200. Read online
  • Record of the Bright Moon: the diary of Fujiwara no Teika, Fujiwara no Teika (藤原定家) (1180 to 1235, as a daily diary, with gaps). The diary of the poet and courtier, then thirty-eight and a middle-ranking official of the Kujo house. Read online
  • Surviving Documents of the Kamakura Period, Various; collected by Takeuchi Rizo (竹内理三) (documents of 1185 to 1333, collected and printed 1971 to 1997). The collected charters, deeds, court orders, shogunal directives, temple records and land registers of the Kamakura age, printed in date order. Read online
  • The Tale of the Heike, Anonymous; traditionally attributed to Shinano no Zenji Yukinaga, performed and reshaped by blind reciters (early thirteenth century in its first form; the standard Kakuichi text was fixed in 1371). The epic of the Genpei war, in the form the reciters gave it over the century after 1200. Read online

Sources and studies

  1. KJA_BRIEF.md and the OMNIA board for sheet kja (the lead's notes: [own] computation, [not yet checked against the source] recollection, [en] English Wikipedia)
  2. Azuma Kagami (the Kamakura chronicle), Kenkyu 10 to Shoji 2 entries, recalled and through the brief; ja.wikipedia and ja.wikisource were refused in this session, so no entry was re-read
  3. Jeffrey P. Mass, Warrior Government in Early Medieval Japan (1974), from memory; the archive.org full text could not be opened

Last revised 4 November 2026. Published 4 November 2026. Suggest a correction on the OMNIA Discord.