Tamna (Jeju) was a kingdom that sent tribute to Silla and then to Goryeo; English Wikipedia says it was subjugated in 938 and officially annexed in 1105, and kept local autonomy under its native chiefs.
The titles are Seongju (the Go clan, West Tamna) and Wangja (the Moon clan, East Tamna) according to the page's tables, whose names for the 12th century are not dated (Tamna chiefs). Goryeo magistrates came in the 12th century (the first in 1153 [not yet checked against the source]). Horses, tangerines, abalone and seaweed go north as tribute (board and recollection).
The island rose in 1168 under Yang Su [not yet checked against the source] and rises again in 1202 (Chinese Wikipedia list). The Mongol horse farms are of 1273 and the Mongol prefecture of 1275 and later. On 1 January 1200 it is a quiet island county.
Who holds it
- Title
- Goryeo magistrate (name not known) with the native chiefs
- Confidence
- low
No source we could read names the holder in 1200
Lord in 1200
The Goryeo magistrate of Tamna (name not known) beside the native Seongju and Wangja
Overlord
the king at Gaegyeong, in fact Choe Chung-heon
How things stand that morning
Quiet; tribute goes north each year.
Threats
- A tax-greedy magistrate, as in 1168 (and, on the likely course, in 1202)
Council
The magistrate and the native chiefs' households (Tamna chiefs).
Communities
The native Tamna families, the ferry crews of the south coast.
Militia
No garrison recorded for 1200.
Trade and crafts
Horses, tangerines, abalone, seaweed and cattle hides as tribute [not yet checked against the source].
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.
- 1202Tamna rebels (Chinese Wikipedia list).Depends on: Local grievance over tribute Stopped by: A better magistrate or the Gyeongju rising drawing the court's force elsewhere
Where the sources disagree
Evidence: English Wikipedia's Tamna page for the status and the chiefs' clans; the rest recollection and the campaign board.
"The campaign board" is OMNIA's working map. These notes record where its earlier claims were checked against the sources.
On the map: Seeds round Jeju town on the north coast; the island polygon is in the province record.
Primary sources for Goryeo
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.
- Essentials of the History of Goryeo, Kim Jong-seo (金宗瑞) and the Joseon history office (1452). The chronological companion to the Goryeosa, finished a year after it and drawing on the same lost records, sometimes with entries the Goryeosa omits. Read online
- Continuation of the Comprehensive Mirror for Aid in Government, Bi Yuan (畢沅), completed by Feng Jiwu after his death (late eighteenth century, finished after 1801, from Song and Yuan sources). A Qing scholar's continuous month-by-month chronicle of the Song and Yuan centuries, compiled from the Song shi, the Liao, Jin and Yuan histories, Li Tao, Li Xinchuan and other Song sources. Read online
- History of Goryeo, Jeong Inji (鄭麟趾), Kim Jong-seo (金宗瑞) and the Joseon history office (completed 1451, from the Goryeo veritable records and earlier drafts). The official history of Goryeo, compiled by the Joseon state from the lost Goryeo veritable records. Read online
- History of the Jin, Toqto'a (脫脫) and the Yuan history office, with Ouyang Xuan among the chief compilers (1343 to 1344, from the Jin veritable records and the Jin national history). The official history of the Jurchen empire that ruled north China and Manchuria in 1200. 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
- Draft Compilation of the Collected Statutes of the Song, Various; the Song huiyao were compiled by the Song state, the surviving draft reassembled by Xu Song from the Yongle dadian in the nineteenth century (the original Song compilations date from the eleventh to the thirteenth century; the surviving extracts were recovered in 1809 to 1820 and printed in 1936). Dated extracts from the Song government's own statute collections, arranged by office. Read online
- Description of the Foreign Peoples (Chau Ju-kua), Zhao Rukuo (趙汝适) (about 1225, while superintendent of maritime trade at Quanzhou). The Song customs officer's survey of the overseas world, compiled from merchants and from Zhou Qufei, a generation after 1200 but describing trade routes that were the same in 1200. Read online
- Collected Works of Minister Yi of the Eastern Country (Yi Gyu-bo), Yi Gyu-bo (李奎報) (poems and prose from the 1190s to 1241; collected and printed by his son in 1241, with a supplement in 1242). The collected poems, letters, memorials and essays of a Goryeo scholar who was thirty-two and still seeking office in 1200. Read online
2 more in the sources library for Korea and Japan.
Sources and studies
- Tamna (English Wikipedia)
- Goryeo Sinjong 高麗神宗 (Chinese Wikipedia)
- Goryeosa, Goryeosa jeoryo, Samguk yusa, Lee Ki-baik, Shultz: not opened in this run (Wikisource could not be reached); facts marked recollection come from these as remembered
- Sheet brief KJA_BRIEF.md and the OMNIA board notes (leads, not sources)
Last revised 4 November 2026. Published 4 November 2026. Suggest a correction on the OMNIA Discord.