Tsushima is the island door to Goryeo, with two districts (Kamiagata and Shimoagata) and a provincial seat at Izuhara.
Its working government is the Abiru, a local family who hold the office of provincial clerks, broker the Korea trade, and keep the first watch against whatever crosses the water. The Sō, who will rule the island for centuries, do not come until the 13th century (English Wikipedia).
Who he is
- Name
- the Abiru clan; head not known for 1 January 1200
- Title
- Local officials of Tsushima (zaichō kanjin)
- Since
- The Abiru replaced the old local line in the Heian period (English Wikipedia, Tsushima Province)
- Family
- Abiru; the Sō (Koremune) do not rise until the mid-13th century (English Wikipedia)
- Confidence
- medium
English Wikipedia (Tsushima Province) for the Abiru and the Sō; the rest is the brief.
Overlord
the Dazaifu; the court's governor of Tsushima (absentee)
What it holds
- The provincial office of Tsushima
- The harbours of the strait
How things stand that morning
Quiet; Goryeo and Japan trade through here and Geumju. No Mongol, no wakō before 1223.
Places of note
- Izuhara: Provincial seat
Where the sources disagree
Evidence: English Wikipedia and the brief agree on the Abiru and the late rise of the Sō.
Primary sources for Kyoto court
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
- History of the Song, the chapters on Xia and on foreign states, Toqto'a (脫脫) and the Yuan history office (1343 to 1345). The Song court's accounts of its neighbours, each arranged as an annal of embassies and wars. 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
4 more in the sources library for Korea and Japan.
Sources and studies
- OMNIA kja regional brief (KJA_BRIEF.md), the campaign's dated traps and realm table
- OMNIA board notes and places for area kjw (starting lead only, checked against the sources)
- Tsushima Province, English Wikipedia
Last revised 4 November 2026. Published 4 November 2026. Suggest a correction on the OMNIA Discord.