William Eustace1
He lived at Naas, County Kildare, IrelandG.1 He came under the protection of the Proclamation of Pardon and Oblivion published by King James I on his accession.1 It is possible that this William Eustace, of Naas, may have been a son of one of the younger sons of the 1st Viscount Baltinglass.1 He styled himself as Viscount Baltinglass, in 1610.1
Children of William Eustace and Margaret Ashe
- Rowland Eustace+2 d. 1641
- Jane Eustace2
Hon. Catherine Frances Talbot1 
From 9 May 1809, her married name became Eustace.1
Children of Hon. Catherine Frances Talbot and Lt.-Gen. Sir William Cornwallis Eustace
- Alexander John Talbot Eustace-Malpas+1 d. 14 Mar 1870
- Frances Catherine Elizabeth Eustace4
- Alicia Margaret Maria Eustace4 d. 1840
Margaret Ashe1
She lived at Great Forenass, County Kildare, IrelandG.1 Her married name became Eustace.
Children of Margaret Ashe and William Eustace
- Rowland Eustace+2 d. 1641
- Jane Eustace2
Rowland Eustace1 
Children of Rowland Eustace and Elizabeth Bigland
- James Eustace2
- Richard Eustace+2 d. bt 21 Aug 1702 – 10 Sep 1702
Jane Eustace1
Her married name became Archbold.
Captain unknown Archbold1
- [S47] BIFR1976 page 388. See link for full details for this source. Hereinafter cited as. [S47]
Mary Strickland1
Child of Mary Strickland
Elizabeth Bigland1
Her married name became Eustace.
Children of Elizabeth Bigland and Rowland Eustace
- James Eustace2
- Richard Eustace+2 d. bt 21 Aug 1702 – 10 Sep 1702
James Eustace1 
He was Officer in the Army.1
Richard Eustace1 
He lived at Naas, County Kildare, IrelandG.1 He lived at Ashe’s Castle.1 His last will was dated 21 August 1702.1
Children of Richard Eustace and Mary Forster
- John Eustace2
- Charles Eustace+2 d. bt 28 Apr 1732 – 2 Feb 1733
- William Eustace2
- Elizabeth Eustace2
- Avia Eustace2
- Mary Eustace2
