| 释义 |
- References
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{{Refbegin}}- D'Alton, John, [https://books.google.com/books?id=_qANAAAAIAAJ Illustrations, Historical and Genealogical, of King James's Irish Army List (1689)]. Dublin: 1st edition (single volume), 1855. pp. 328–32.
- History of Galway, James Hardiman, 1820
- Tabular pedigrees of O'Shaughnessy of Gort (1543–1783), Martin J. Blake, Journal of the Galway Archaeological and Historical Society, vi (1909–10), p. 64; vii (1911–12), p. 53.
- John O'Donovan. [https://books.google.com/books?id=fgMGAAAAQAAJ The Genealogies, Tribes, and Customs of Hy-Fiachrach]. Dublin: Irish Archaeological Society. 1844. Pedigree of O'Shaughnessy: pp. 372–91.
- Old Galway, Professor Mary Donovan O'Sullivan, 1942
- Galway: Town and Gown, edited Moran et al., 1984
- Galway: History and Society, 1996
{{Refend}}{{s-start}}{{succession box |before=Roger Gilla Dubh Ó Seachnasaigh| title=Lord of Cenél Áeda na hEchtge| after=Roger O'Shaughnessey| years=before 1650-1673|
}}{{s-end}}{{DEFAULTSORT:O Seachnasaigh, Dermott}} 3 : People from County Galway|O'Shaughnessy family|17th-century Irish people |