Ceallach mac Guaire
7th-century Irish monarch
About Ceallach mac Guaire
Ceallach mac Guaire (died 665) was King of UÃ Fiachrach Aidhne.
Ceallach was a son of the previous king, but reigned for only two years. In 664 "A great mortality prevailed in Ireland ... called the Buidhe Connail" and in 666 "A great plague raged" which killed hundreds in Connacht. However it is not known if either event led to Ceallach's demise.
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Important facts
Frequently asked questions
Who was Ceallach mac Guaire?
7th-century Irish monarch
When did Ceallach mac Guaire die?
Ceallach mac Guaire died in 666.
Sources & further reading
· Wikipedia: Ceallach mac Guaire
· DBpedia: Ceallach mac Guaire
Cite this page
APA: Biography.guide. (2026). Ceallach mac Guaire. https://biography.guide/ceallach-mac-guaire/
MLA: "Ceallach mac Guaire." Biography.guide, https://biography.guide/ceallach-mac-guaire/.
Chicago: "Ceallach mac Guaire." Biography.guide. https://biography.guide/ceallach-mac-guaire/.
Data last updated: 2026-09-20 · Spot an error? Report a correction.
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