The Dal Fiachrach Suighe (English: Seed of Fiachra Suighe) were an
Irish lineage claiming descent from Fiachra Suighe (also spelled Fiacha Suidhe), the youngest of six sons of
Fedlimid Rechtmar. His oldest brother was the legendary
High KingConn Cétchathach. They are the ancestors of the
Déisi Muman and the
Déisi Tuisceart (later known as the
Dál gCais).
Fiachra's great-great-great-great grandsons, the four sons of Art Corb, were expelled from
Tara, a story told in The Expulsion of the Déisi.[1] One group, led by Eochaid Allmhuir, settled in
Dyfed c. 270,[2][3] while the second group eventually settled among the
Déisi of south
Munster. These events have been tied to Irish pirate raids all over the west coast of
Roman Britain in the 4th and 5th centuries and to the foundation of the Irish kingdoms of
Dyfed,
Brecon and
Cornwall around 400.
"The Déisi and Dyfed", T. Ó Cathasigh, Eigse, vol. XX, 1984, p. 1-33.
"The
Vita tripartita of St. Patrick", Eoin MacNeill, Eriu 11, 1932, p. 1-41.
Rance, Philip (2001), "Attacotti, Déisi and Magnus Maximus: the Case for Irish Federates in Late Roman Britain", Britannia, vol. 32, pp. 243–270
Miller, Molly, 1977/8 'Date-Guessing and Dyfed', Studia Celtica 12/13, pp. 33–61.
Meyer, Kuno (1896),
"Early Relations Between Gael and Brython", in Evans, E. Vincent (ed.), Transactions of the Honourable Society of Cymmrodorion, Session 1895–1896, vol. I, London: Honourable Society of Cymmrodorion, pp. 55–86