- Sechnassach mac Colggen
Sechnassach mac Colggen (died 746 / 747) was a king of the
Uí Cheinnselaig of SouthLeinster or Laigin Desgabair. He was of the Sil Chormaic sept of this branch of the Laigin. His father Colcú mac Bressail (died 722) was called king of Ard Ladrann (near Gorey, Co.Wexford) at his death obit in the annals in 722 which mention that he was killed. Sechnassach was the great-great grandson ofCrundmáel Erbuilc (died 655),aKing of Leinster and brother ofÁed mac Colggen (died 738), also King of Leinster. [Mac Niocaill pg.128-fig.22]His brother had been slain at the Battle of Áth Senaig in 738 by the high king
Áed Allán . After the crushing defeat at Áth Senaig, the Uí Dúnlainge dominated the kingship of Leinster for fully three centuries. He succeeded his brother as king and ruled from 738-746/ 747. Nothing is recorded of him in the annals other than his death. ["Annals of Ulster", AU 746.10, 747.4; "Annals of Tigernach", AT 746.9, 747.5] His nephewEterscél mac Áeda (died 778) was also a King of the Uí Cheinnselaig.Notes
References
* "Annals of Ulster" at [http://www.ucc.ie/celt/published/T100001A/index.html] at [http://www.ucc.ie/ University College Cork]
* "Annals of Tigernach" at [http://www.ucc.ie/celt/published/G100002/index.html] at [http://www.ucc.ie/ University College Cork]
* Gearoid Mac Niocaill (1972), "Ireland before the Vikings", Dublin: Gill and MacmillanExternal links
* [http://celt.ucc.ie/index.html CELT: Corpus of Electronic Texts] at [http://www.ucc.ie/ University College Cork]
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