Family: Sir Henry Threlkeld / Alice Unknown (F3676)
m. Bef 21 Oct 1425-
Father | Male
Sir Henry Threlkeld
Born 29 Sep 1399 Threlkeld, Cumberland, England 
Died Aft 18 Nov 1446 Buried Married Bef 21 Oct 1425 [1] Other Spouse Margaret Thornburgh | F3677 Married Bef 19 Nov 1446 Father Sir William Threlkeld | F3678 Group Sheet Mother Katherine Unknown | F3678 Group Sheet
Child 1 | Male
Sir Lancelot Threlkeld
Born Abt 1435 England Died Bef 1492 Buried Spouse Margaret de Bromflett | F3669 Married Bef 14 May 1467 Londesborough, Yorkshire, England
Child 3 | Female
Unknown Threlkeld
Born Died Buried Spouse Sir William Layton of Daleman | F3680 Married
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Sources - [S4042] "Pedigree of the Threlkelds of Threlkeld, Cumberland, of Yanwath and Crosby Ravesworth, Westmoreland and of the Threlkelds of Osthorpe, Yorkshire, Pensher and Durham", W. Johnson, F.S.A, (Name: T. Wilson; Location: Highgate, Kendal, Westmoreland, England; Date: 1888;), Article XXII of "Transactions of the Cumberland and Westmorland Antiquarian and Archaeology Society", edited by The Worshipful Chancellor Ferguson, M.A., LL., S.S.A, President of the Society. Article as communicated to W. Jackson by Kirkby Stephen on 7 Jul 1887; pages 298-317; accessed 16 April 2015.
- [S4042] "Pedigree of the Threlkelds of Threlkeld, Cumberland, of Yanwath and Crosby Ravesworth, Westmoreland and of the Threlkelds of Osthorpe, Yorkshire, Pensher and Durham", W. Johnson, F.S.A, (Name: T. Wilson; Location: Highgate, Kendal, Westmoreland, England; Date: 1888;), Article XXII of "Transactions of the Cumberland and Westmorland Antiquarian and Archaeology Society", edited by The Worshipful Chancellor Ferguson, M.A., LL., S.S.A, President of the Society. Article as communicated to W. Jackson by Kirkby Stephen on 7 Jul 1887; pages 298-317; accessed 16 April 2015.