[1]Archived 2009-04-24 at the Wayback Machine. Aldfrith of Northumbria and the Irish genealogies. Ireland, C. A., in Celtica 22 (1991].
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The chronology of the Irish annals in this period is unreliable. The Annals of Tigernach date his death to 608 and the Annals of Ulster probably to 610. Dan McCarthy of Trinity College Dublin has proposed the abandonment of the traditional reliance on the chronology of the Annals of Ulster in this period, see his writings for a full discussion.
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[1]Archived 2009-04-24 at the Wayback Machine. Aldfrith of Northumbria and the Irish genealogies. Ireland, C. A., in Celtica 22 (1991].