Dermot mac Tadhg Mor
12th-century Irish monarch
About Dermot mac Tadhg Mor
Lived 1124 – 1159 (aged 34–35).
Dermot mac Tadhg Mor, 7th king of Moylurg, reigned from 1124 to 1159. Vassal and kinsman of the O Conchobhair Kings of Connacht. Dermot was the progenitor of the MacDermot family, as well as its offshoot septs such as MacDermot Roe, McDonagh, and Crowley (surname).
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Important facts
Contemporaries
People whose lives overlapped Dermot mac Tadhg Mor's
Frequently asked questions
Who was Dermot mac Tadhg Mor?
12th-century Irish monarch
When was Dermot mac Tadhg Mor born?
Dermot mac Tadhg Mor was born in 1124.
When did Dermot mac Tadhg Mor die?
Dermot mac Tadhg Mor died in 1159.
Sources & further reading
· Wikipedia: Dermot mac Tadhg Mor
· DBpedia: Dermot mac Tadhg Mor
Cite this page
APA: Biography.guide. (2026). Dermot mac Tadhg Mor. https://biography.guide/dermot-mac-tadhg-mor/
MLA: "Dermot mac Tadhg Mor." Biography.guide, https://biography.guide/dermot-mac-tadhg-mor/.
Chicago: "Dermot mac Tadhg Mor." Biography.guide. https://biography.guide/dermot-mac-tadhg-mor/.
Data last updated: 2026-09-20 · Spot an error? Report a correction.
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