Captain Thomas Blennerhassett1 
He was probably educated at Trinity Hall, Cambridge University, Cambridge, Cambridgeshire, EnglandG.1 He was Captain at Guernsey Castle in 1577.1 He wrote the book Mirrour for Magistrates, published 1578.1 He wrote the book Revelation of the true Minerva, published 1582.1 He wrote the book Direction for the Plantation in Ulster, published 1610.1 In 1610 Captain Thomas Blennerhassett was granted 1,500 acres in Edernagh, County Fermanagh, IrelandG.1 He lived at Horsford, Norwich, Norfolk, EnglandG.1 He lived at Castle Hassett, (Crevenish Castle), Kesh, County Fermanagh, IrelandG, which he built.1
Children of Captain Thomas Blennerhassett and Frances Sampson
- Edward Blennerhassett1
- Sir Leonard Blennerhassett+1 d. 20 May 1639
- Margaret Blennerhassett2
- Mary Blennerhassett2
- Samuel Blennerhassett1 b. 1600, d. c 1625
Frances Sampson1 
She lived at Harkstead, Ipswich, Suffolk, EnglandG.1 From 1586, her married name became Blennerhassett.1
Children of Frances Sampson and Captain Thomas Blennerhassett
- Edward Blennerhassett1
- Sir Leonard Blennerhassett+1 d. 20 May 1639
- Margaret Blennerhassett2
- Mary Blennerhassett2
- Samuel Blennerhassett1 b. 1600, d. c 1625
Elizabeth Sandys1 
Her married name became Blennerhassett.1
- [S47] BIFR1976 Blennerhassett, page 134. See link for full details for this source. Hereinafter cited as. [S47]
Sir William Sandys1 
Child of Sir William Sandys
- [S47] BIFR1976 Blennerhassett, page 134. See link for full details for this source. Hereinafter cited as. [S47]
Edward Blennerhassett1 
He was under age in 1598.1
- [S47] BIFR1976 Blennerhassett, page 134. See link for full details for this source. Hereinafter cited as. [S47]
Samuel Blennerhassett1 
He held the office of High Sheriff of County Fermanagh in 1622.1
- [S47] BIFR1976 Blennerhassett, page 134. See link for full details for this source. Hereinafter cited as. [S47]
Sir Leonard Blennerhassett1 
He was appointed Knight on 6 March 1635/36.1 He lived at Castle Hassett, Kesh, County Fermanagh, IrelandG, which he erected into a manor by grant in 1630.1
Children of Sir Leonard Blennerhassett and Deborah Mervyn
Deborah Mervyn1 
Her married name became Blennerhassett.1 From 1640, her married name became Maguire.1
Children of Deborah Mervyn and Sir Leonard Blennerhassett
Col. Hon. Rory Maguire1 
He might have been named Roger Maguire.1
- [S47] BIFR1976 Blennerhassett, page 134. See link for full details for this source. Hereinafter cited as. [S47]
Bryan Maguire, 1st Baron Maguire1
Child of Bryan Maguire, 1st Baron Maguire
- [S6] G.E. Cokayne; with Vicary Gibbs, H.A. Doubleday, Geoffrey H. White, Duncan Warrand and Lord Howard de Walden, editors, The Complete Peerage of England, Scotland, Ireland, Great Britain and the United Kingdom, Extant, Extinct or Dormant, new ed., 13 volumes in 14 (1910-1959; reprint in 6 volumes, Gloucester, U.K.: Alan Sutton Publishing, 2000), volume VIII, page 353. Hereinafter cited as The Complete Peerage.
- [S47] BIFR1976 Blennerhassett, page 134. See link for full details for this source. Hereinafter cited as. [S47]
