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Dermod MacCarthy Mor

1310 – 1368

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About Dermod MacCarthy Mor

Lived 1310 – 1368 (aged 57–58).

Dermot MacCarthy (1310–1367) was the 1st Lord of Muskerry. He was an Irish magnate who owned extensive lands in central Munster. He was the first of the long line of the MacCarthy of Muskerry dynasty.

Birth and origins Dermot was born in 1310 or 1340, second son of Cormac MacCarthy Mor, King of Desmond.

Children MacCarthy had at least three sons: Cormac (d. 1374), 2nd Lord of Muskerry Felim Donough

Later life and death MacCarthy was granted the Muskerry area as appanage in 1353 and received the English title Lord of Muskerry.

He died a violent death in 1367, 1368 or 1381, killed by the O'Mahonys or by his uncle Fitzmaurice. He died in 1381 or in 1367, killed by the O'Mahonys. Otherwise, he was killed by his maternal uncle Lord Fitzmaurice in 1368. He is the founder of the MacCarthy of Muskerry dynasty. He was probably succeeded by his eldest son Cormac as the 2nd Lord. His grandson Teige was the 6th Lord, but the 3rd, 4th and 5th lords are not known by name and might have succeeded by primogeniture or might have been chosen by tanistry.

Notes, citations, and sources

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Important facts

Born
1310
Birth century
Died
1368
Also known as
Dermot MacCarthy, 1st Lord of Muskerry

Family & relationships

Parent
Cormac MacCarthy Mor, King of Desmond

Contemporaries

People whose lives overlapped Dermod MacCarthy Mor's

Frequently asked questions

Who was Dermod MacCarthy Mor?

(1310-1368)

When was Dermod MacCarthy Mor born?

Dermod MacCarthy Mor was born in 1310.

When did Dermod MacCarthy Mor die?

Dermod MacCarthy Mor died in 1368.

Sources & further reading

· Wikipedia: Dermod MacCarthy Mor

· Wikidata: Q75653841

· DBpedia: Dermot MacCarthy, 1st Lord of Muskerry

Cite this page

APA: Biography.guide. (2026). Dermod MacCarthy Mor. https://biography.guide/dermod-maccarthy-mor/

MLA: "Dermod MacCarthy Mor." Biography.guide, https://biography.guide/dermod-maccarthy-mor/.

Chicago: "Dermod MacCarthy Mor." Biography.guide. https://biography.guide/dermod-maccarthy-mor/.

Data last updated: 2026-09-20 · Spot an error? Report a correction.

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