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Tethbae

middle Ages Irish confederation

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General referenceInterpretive dossier study · Crown Archives visual atlas
Record originEnglish Wikipedia
Text licenseCC BY-SA 4.0
Source revisionAug 21, 2026
Entity authorityQ7706096 ↗
Source-derived summary

Tethbae (Old Irish pronunciation: [ˈt̠ʲeθβe]; also spelled Tethba, often anglicised Teffia) was a confederation of túatha in central Ireland in the Middle Ages. It was divided into two distinct kingdoms, north Tethba, ruled by the Cenél Coirpri, and south Tethba, ruled by the Cenél Maini. It covered parts of County Westmeath and much of County Longford, counties which today are the far north-west part of the province of Leinster. In some cases, Tethbae may refer to South Tethbae only.

Two Tethbae

In Early Christian times, Tethba lay within the lands of the southern Uí Néill and the ruling dynasties of both kingdoms were reckoned members of the Uí Néill kindred in medieval genealogies. North Tethba—Tethbae Thúaiscirt—was centred on Granard, while south Tethba—Tethbae Deiscirt—lay around Ardagh.

The division of Tethbae into northern and southern regions was attested in the 7th century. It was not only a political and dynastic division. The chief churches of the two-halves belonged to different church confederations. North Tethbae's principal church at Granard was associated with Saint Patrick from the earliest written records.

Editorial summary

The public source identifies “Tethbae” as middle Ages Irish confederation. This brief keeps that definition visible, then builds a research path around Tethbae, middle and Ages.

Editorial reviewA practical starting point whose main value is the path it opens into stronger specialist and primary sources. The current 176-word lead offers orientation but no explicit four-digit date, so chronology should not be assumed. The selected authority fields contribute no independent date. Its value is orientation rather than verdict, with Tethbae, middle and Ages providing the first useful test.
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This entry incorporates text from “Tethbae” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.