Nielsen Hayden genealogy
Family: Henry of Lancaster / Maud de Chaworth (F1680)
m. Bef 2 Mar 1297-
Father | Male
Henry of Lancaster
Born Abt 1280 Died 22 Sep 1345 Buried The Newarke, Leicester Castle, Leicester, Leicestershire, England 
Married Bef 2 Mar 1297 [1, 2, 3, 4, 5, 6] Father Edmund "Crouchback" | F3898 Group Sheet Mother Blanche of Artois | F3898 Group Sheet
Mother | Female
Maud de Chaworth
Born 2 Feb 1282 Died Bef 3 Dec 1322 Buried Mottisfont Priory, Hampshire, England Father Patrick de Chaworth | F1093 Group Sheet Mother Isabel de Beauchamp | F1093 Group Sheet
Child 1 | Female
+ Maud of Lancaster
Born Died 5 May 1377 Buried Spouse William de Burgh | F10925 Married Bef 16 Nov 1327
Child 2 | Male
+ Henry of Grosmont
Born Abt 1310 Died 23 Mar 1361 Buried Spouse Isabel de Beaumont | F9683 Married
Child 3 | Female
+ Joan of Lancaster
Born Abt 1312 Died Aft 1345 Buried Byland, Yorkshire, England Spouse John de Mowbray | F5981 Married Between 28 Feb 1327 and 4 Jun 1328
Child 4 | Female
+ Eleanor of Lancaster
Born Abt 1318 Died 11 Jan 1372 Arundel, Sussex, England Buried Lewes Priory, Sussex, England Spouse Richard Fitz Alan | F1589 Married 5 Apr 1345
Child 5 | Female
+ Mary of Lancaster
Born Abt 1320 Died 1 Sep 1362 Buried Alnwick Abbey, Northumberland, England Spouse Henry de Percy | F11215 Married Bef 5 Sep 1334
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Sources - [S53] The Magna Charta Sureties, 1215: The Barons Named in the Magna Charta, 1215, and Some of Their Descendants Who Settled in America During the Early Colonial Years, by Frederick Lewis Weis. Fifth edition, with additions and corrections by Walter Lee Sheppard, Jr. and William R. Beal. Baltimore: Genealogical Publishing Company, 1999.
- [S142] Royal Ancestry, by Douglas Richardson. Kimball G. Everingham, ed. 2013.
- [S145] Ancestral Roots of Certain American Colonists Who Came to America Before 1700, by Frederick Lewis Weis and Walter Lee Sheppard, Jr. 8th edition, William R. Beall & Kaleen E. Beall, eds. Baltimore: Genealogical Publishing Company, 2004, 2006, 2008.
- [S73] Political Society in Lancastrian England: The Greater Gentry of Nottinghamshire by S. J. Payling. Oxford: Clarendon Press, 1991., "shortly before March 1297".
- [S1480] The Ancestry of Charles II, King of England: A Medieval Heritage by Charles M. Hansen and Neil D. Thompson. Saline, Michigan: McNaughton and Gunn, 2012.
- [S1526] The Ancestry of Dorothea Poyntz, Wife of Reverend John Owsley, Generations 1-15, Fourth Preliminary Edition by Ronny O. Bodine and Bro. Thomas Spalding, Jr. 2013.
- [S53] The Magna Charta Sureties, 1215: The Barons Named in the Magna Charta, 1215, and Some of Their Descendants Who Settled in America During the Early Colonial Years, by Frederick Lewis Weis. Fifth edition, with additions and corrections by Walter Lee Sheppard, Jr. and William R. Beal. Baltimore: Genealogical Publishing Company, 1999.