Sir Dermott Ó Seachnasaigh, Chief of the Name, died 1673.

Ó Seachnasaigh was married to Joan, daughter of Lord Barrymore and had sons Roger and Cormac. A copy of his will survives.

References

Preceded by Lord of Cenél Áeda na hEchtge
before 1650–1673
Succeeded by
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