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Family:
Marriage:
Bibliography
  1. Acheson, Eric, Gentry Community: Leicestershire in fifteenth century. Cambridge: Univ Press, 1993. NYPL JFD 92-12870. Information from this source tagged as [Ref: Acheson Leicester p[0-9]*].
  2. Cokayne, George Edward, Complete Peerage of England, Scotland, Ireland, Great Britain, and the United Kingdom, extant, extinct, or dormant, vol 03 Canonteigh-Cutts. London: St Catherine Press, 1913. Reprinted (4 per page) Gloucester: A Sutton, 1982. Available at https://familysearch.org/search/catalog/271412 Vol 3 also available at http://archive.org/completepeerageo03coka Information from this source tagged as [Ref: CP III [Ap][p0-9].*].
  3. Cokayne, George Edward, Complete Peerage of England, Scotland, Ireland, Great Britain, and the United Kingdom, extant, extinct, or dormant, vol 04 Dacre-Dysart. London: St Catherine Press, 1916. Reprinted (4 per page) Gloucester: A Sutton, 1982. Available at https://familysearch.org/search/catalog/271412 Vol 4 also available at http://archive.org/completepeerageo04byucoka Information from this source tagged as [Ref: CP IV [Ap][p0-9].*].
  4. Cokayne, George Edward, Complete Peerage of England, Scotland, Ireland, Great Britain, and the United Kingdom, extant, extinct, or dormant, vol 08, Lindley-Moate. London: St Catherine Press, 1932. Reprinted (4 per page) Gloucester: A Sutton, 1982. Available at https://familysearch.org/search/catalog/271412 Information from this source tagged as [Ref: CP VIII [Ap][p0-9].*].
  5. Richardson, Douglas, Royal Ancestry. Salt Lake City, Utah: Douglas Richardson, 2013. NYPL JFF 16-1184 v1-5 Information from this source tagged as [Ref: Richardson RoyalAnc v1[pc][0-9]*].
  6. Richardson, Douglas, Royal Ancestry. Salt Lake City, Utah: Douglas Richardson, 2013. NYPL JFF 16-1184 v1-5 Information from this source tagged as [Ref: Richardson RoyalAnc v4p[0-9]*].

Sources for birth and parent Information
date:
age 3 in 1406 [Ref: CP IV p125],
parents:
[Ref: CP III p552, CP IV p125, Richardson RoyalAnc v4p278]
Sources for death Information
date:
[Ref: CP IV p126]
1422 [Ref: CP III p552, CP VIII p222]
Sources with Information about marriage to Elizabeth BEAUMONT
date:
first marriage of Elizabeth [Ref: Acheson Leicester p234, Richardson RoyalAnc v1p316, Richardson RoyalAnc v4p239]
license 3 Jan 1417/8 [Ref: CP IV p125],
place:
[Ref: CP IV p125]
Research Notes:
6th Lord Deincourt, of Barony cr 1299 [Ref: CP IV p125]
6th Lord Deincourt [Ref: Richardson RoyalAnc v4p278]
Lord Deincourt [Ref: Richardson RoyalAnc v4p239]

son and heir of Sir John Deincourt, 5th Lord Deincourt [Ref: CP IV p125]

d.s.p and Barony fell into abeyance [Ref: CP IV p126]



Pedigree of William DEINCOURT, Lord Deincourt
                                                                /-----Oliver DEINCOURT, Baron Of Blankney
                                                       /-----Sir John DEINCOURT, Baron Of Blankney
                                                      |         \-----Nichola De La HAY, Lady Of Munden
                                              /-----Sir Edmund DEINCOURT, Lord Deincourt
                                             |        |         /-----Geoffrey FITZ ROBERT De NEVILL
                                             |         \-----Agnes De NEVILLE
                                             |                  \-----Joan
                                     /-----John DEINCOURT
                                    |        |                  /-----Sir Reynold De MOHUN, Baron Of Dunster
                                    |        |         /-----Sir Reynold De MOHUN, Baron Of Dunster
                                    |        |        |         \-----Alice De BRIWERE
                                    |         \-----Isabel De MOHUN
                                    |                 |         /-----Geoffrey FITZ PIERS, Earl Of Essex
                                    |                  \-----Hawise FITZ GEOFFREY
                                    |                           \-----Aveline De CLARE
                            /-----Sir William DEINCOURT, Lord Deincourt
                   /-----Sir William DEINCOURT
                  |        |                                    /-----Alan CEOCHE
                  |        |                           /-----Roger La ZOUCHE
                  |        |                          |         \-----Alice De Belmeis
                  |        |                  /-----Eudo La ZOUCHE
                  |        |                 |        |         /-----Henry BISET
                  |        |                 |         \-----Margaret BISET
                  |        |                 |                  \-----Aubrey FITZ EUSTACE
                  |        |         /-----William La ZOUCHE, Lord Zouche
                  |        |        |        |                  /-----Sir William De CANTELOU, Baron Of Eaton Bray
                  |        |        |        |         /-----William De CANTELOU, Lord Abergavenny
                  |        |        |        |        |         \-----Millicent De GOURNAY
                  |        |        |         \-----Milicent De CANTELOU
                  |        |        |                 |         /-----William De BRAIOSE, Baron Of Brecknock Castle
                  |        |        |                  \-----Eva De BRAIOSE, Baroness Abergavenny
                  |        |        |                           \-----Eve MARSHALL
                  |         \-----Milicent La ZOUCHE
                  |                 |                           /-----Sir John LOVEL
                  |                 |                  /-----John LOVEL
                  |                 |                 |         \-----Katherine BASSET
                  |                 |         /-----Sir John LOVEL, Lord Lovel Of Titchmarsh
                  |                 |        |        |         /-----Sir William De SYDENHAM
                  |                 |        |         \-----Maud De SYDENHAM
                  |                  \-----Maud LOVEL
                  |                          |                  /-----Ernald De BOSCO
                  |                          |         /-----Ernald De BOSCO
                  |                          |        |         \-----Joan BEAUCHAMP
                  |                           \-----Isabel De BOSCO
                  |                                   |         /-----Henry De TUBNEY
                  |                                    \-----Alice De TUBNEY
          /-----Wiliam DEINCOURT, Lord Deincourt
         |        |                                             /-----William
         |        |                                    /-----Robert De WELLE
         |        |                                   |         \-----Matilda De GANT
         |        |                           /-----William De WELLES
         |        |                          |         \-----Maud
         |        |                  /-----Sir Robert De WELLES
         |        |                 |        |         /-----William De GRAINSBY
         |        |                 |         \-----Emma De GRAINSBY
         |        |         /-----Adam De WELLES, Lord Welles
         |        |        |        |                  /-----Sir Thomas De PERITON
         |        |        |        |                 |         \-----(Unk) De DUMART
         |        |        |        |         /-----Adam De PERITON
         |        |        |         \-----Isabel De PERITON
         |        |        |                  \-----Cecily
         |         \-----Margaret WELLE
         |                 |                                    /-----Richard ENGAINE
         |                 |                           /-----Richard ENGAINE
         |                 |                          |         \-----Margery FITZURSE
         |                 |                  /-----Viel ENGAINE
         |                 |                 |        |         /-----William De CHESNEY
         |                 |                 |         \-----Sara De CHESNEY, Lady Of Colne
         |                 |                 |                  \-----Gilla
         |                 |         /-----Sir John ENGAINE
         |                 |        |         \-----Rohese
         |                  \-----Joan ENGAINE
         |                          |         /-----Sir Gilbert De GREINVILLE
         |                           \-----Joan GREINVILLE
         |                                    \-----Joyouse
 /-----Sir John DEINCOURT, Lord Deincourt
|        |                                                      /-----Geoffrey FITZ ROBERT De NEVILL
|        |                                             /-----Sir Robert De NEVILLE
|        |                                            |         \-----Joan
|        |                                    /-----Robert De NEVILLE
|        |                           /-----Randolph De NEVILLE, Lord Neville Of Raby
|        |                          |        |                  /-----Ranulf FITZROBERT, Lord Of Middleham
|        |                          |        |         /-----Sir Ralph FITZ RANULF, Lord of Middleham
|        |                          |        |        |         \-----Mary BIGOD
|        |                          |         \-----Mary FITZRANULPH
|        |                          |                 |         /-----Sir William De PERCY, Baron Of Topcliffe
|        |                          |                  \-----Anastasia De PERCY
|        |                          |                           \-----Joan De BRIWERE
|        |                  /-----Ralph De NEVILLE, Lord Neville Of Raby
|        |                 |        |                           /-----John FITZ ROBERT, MC Surety
|        |                 |        |                  /-----Roger FITZ JOHN, Baron Of Whalton
|        |                 |        |                 |         \-----Ada De BALIOL
|        |                 |        |         /-----Robert FITZ ROGER, Lord Clavering
|        |                 |        |        |        |         /-----Sir Parick DUNBAR, Earl Of Dunbar
|        |                 |        |        |         \-----Isabel
|        |                 |        |        |                  \-----Euphemia
|        |                 |         \-----Euphemia De CLAVERING
|        |                 |                 |                  /-----Roger La ZOUCHE
|        |                 |                 |         /-----Sir Alan La ZOUCHE, Constable Of The Tower Of Lon
|        |                 |                 |        |         \-----Margaret BISET
|        |                 |                  \-----Margery De La ZOUCHE
|        |                 |                          |         /-----Roger De QUINCY, Earl Of Winchester
|        |                 |                           \-----Elena De QUINCY
|        |                 |                                    \-----Helen Of Galloway
|        |         /-----John De NEVILL, K.G. Lord Neville Of Raby
|        |        |        |                                    /-----Adam Of Aldithley
|        |        |        |                           /-----Henry Of Aldithley
|        |        |        |                          |         \-----Emma FITZRALF
|        |        |        |                  /-----James De AUDLEY
|        |        |        |                 |        |         /-----Sir Ralph MAINWARING, Seneschal Of Chester
|        |        |        |                 |         \-----Bertrad MAINWARING
|        |        |        |                 |                  \-----Amicia Of Chester
|        |        |        |         /-----Sir Hugh De AUDLEY, Lord Audley
|        |        |        |        |        |                  /-----William LONGESPEE, Earl of Salisbury
|        |        |        |        |        |         /-----Sir William De LONGESPEE
|        |        |        |        |        |        |         \-----Ela Of Salisbury
|        |        |        |        |         \-----Ela LONGESPEE
|        |        |        |        |                 |         /-----Richard De Camville
|        |        |        |        |                  \-----Idoine De Camville
|        |        |        |        |                           \-----Eustacia BASSET
|        |        |         \-----Alice AUDLEY
|        |        |                 |                           /-----Ralph MORTIMER, Baron Of Wigmore
|        |        |                 |                  /-----Sir Roger MORTIMER, Baron Of Wigmore
|        |        |                 |                 |         \-----Gladys DHU
|        |        |                 |         /-----Sir Edmund De MORTIMER, Lord Mortimer
|        |        |                 |        |        |         /-----William De BRAIOSE, Baron Of Brecknock Castle
|        |        |                 |        |         \-----Maud De BRAOISE
|        |        |                 |        |                  \-----Eve MARSHALL
|        |        |                  \-----Isolda MORTIMER
|         \-----Alice NEVILLE
|                 |                                             /-----Sir Henry De PERCY
|                 |                                    /-----Sir William De PERCY, Baron Of Topcliffe
|                 |                                   |         \-----Isabel De BRUS
|                 |                           /-----Sir Henry De PERCY, Baron Of Topcliffe
|                 |                          |        |         /-----Ingram De BALIOL
|                 |                          |         \-----Ellen BALIOL
|                 |                          |                  \-----(Unk Dau) De BERKELEY
|                 |                  /-----Sir Henry PERCY, Lord Percy
|                 |                 |        |                  /-----William De WARENNE, Earl Of Surrey
|                 |                 |        |         /-----John De WARENNE, Earl Of Surrey
|                 |                 |        |        |         \-----Maud MARSHALL
|                 |                 |         \-----Eleanor De WARENNE
|                 |                 |                 |         /-----Hugh X De Lusignan, Count Of La Marche
|                 |                 |                  \-----Alfais De LUSIGNAN
|                 |                 |                           \-----Isabel Of Angouleme
|                 |         /-----Henry De PERCY, Lord Percy
|                 |        |        |                           /-----Sir John FITZALAN, Earl Of Arundel
|                 |        |        |                  /-----Sir John FITZALAN, Earl Of Arundel
|                 |        |        |                 |         \-----Maud De VERDUN
|                 |        |        |         /-----Sir Richard FITZ ALAN, Earl Of Arundel
|                 |        |        |        |        |         /-----Sir Roger MORTIMER, Baron Of Wigmore
|                 |        |        |        |         \-----Isabel MORTIMER
|                 |        |        |        |                  \-----Maud De BRAOISE
|                 |        |         \-----Eleanor FITZ ALAN
|                 |        |                 |                  /-----Manfred III Margrave Of Saluzzo
|                 |        |                 |         /-----Thomas I Margrave Of Saluzzo
|                 |        |                 |        |         \-----Beatrice Of Savoy
|                 |        |                  \-----Alasia Of Saluzzo
|                 |        |                          |         /-----George Of Ceva, Marquis Of Ceva
|                 |        |                           \-----Luisa Of Ceva
|                 |        |                                    \-----Menzia De ESTE
|                  \-----Maud PERCY
|                          |                                    /-----Roger CLIFFORD
|                          |                           /-----Roger CLIFFORD
|                          |                          |         \-----Sibilla De EWYAS
|                          |                  /-----Roger De CLIFFORD
|                          |                 |         \-----Maud
|                          |         /-----Robert De CLIFFORD, Lord Clifford
|                          |        |        |                  /-----John De VIPONT, Baron Of Appleby
|                          |        |        |         /-----Robert De VESPONT
|                          |        |        |        |         \-----Sibilla De FERRERS
|                          |        |         \-----Isabel De VESPONT
|                          |        |                 |         /-----Sir John FITZ GEOFFREY
|                          |        |                  \-----Isabel FITZ JOHN
|                          |        |                           \-----Isabel BIGOD
|                           \-----Idonia De CLIFFORD
|                                   |                           /-----Sir Gilbert De CLARE, Earl Of Hertford And Glouceste
|                                   |                  /-----Richard De CLARE, Earl Of Gloucester And Hertfor
|                                   |                 |         \-----Isabel MARSHALL
|                                   |         /-----Thomas DeCLARE, Lord Of Thomond
|                                   |        |        |         /-----John De LACY, Earl Of Lincoln, MC Surety
|                                   |        |         \-----Maud De LACY
|                                   |        |                  \-----Margaret De QUINCY, Heiress Of Lincoln
|                                    \-----Maud De CLARE
|                                            |                  /-----Sir Maurice FITZ GERALD, Baron Offaly
|                                            |         /-----Maurice FITZ MAURICE FITZ GERALD, Lord Of Offaly
|                                            |        |         \-----Juliane
|                                             \-----Julian FITZ MAURICE
|                                                     |         /-----Gerald De PRENDERGAST
|                                                      \-----Matilda De PRENDERGAST
|                                                               \-----Matilda De BURG
William DEINCOURT, Lord Deincourt
|                                                               /-----Robert De GREY
|                                                      /-----Sir Walter De GREY
|                                             /-----Sir Robert De GREY
|                                            |        |         /-----William De DUSTON
|                                            |         \-----Isabel De DUSTON
|                                            |                  \-----Mary De ERDINGTON
|                                    /-----Sir John De GREY
|                                   |        |         /-----Thomas De VALOINES
|                                   |         \-----Joan De VALOINES
|                                   |                 |         /-----Geoffrey De CLEMDON
|                                   |                  \-----Joan De CLEMDON
|                                   |                           \-----Joan
|                           /-----Sir John De GREY, K.G., Lord Grey Of Rotherfield
|                          |        |                           /-----Hugh De ODINGSELLES
|                          |        |                  /-----William De ODINGSELLS
|                          |        |                 |         \-----Basilia De LIMESY
|                          |        |         /-----William ODDINGSELLS, Lord Of Maxtock
|                          |        |        |         \-----Joan
|                          |         \-----Margaret De ODINGSELLS
|                          |                 |                  /-----Robert FITZ WALTER, Leader Of MC Barons
|                          |                 |         /-----Sir Walter FITZ ROBERT, Baron Of Little Dunmow
|                          |                 |        |         \-----Rohese
|                          |                  \-----Ela FITZ WALTER
|                          |                          |         /-----William LONGESPEE, Earl of Salisbury
|                          |                           \-----Ida LONGSPEE
|                          |                                    \-----Ela Of Salisbury
|                  /-----John GRAY, Lord Gray Of Rotherfield
|                 |        |                                    /-----Alan FITZ BRIAN
|                 |        |                           /-----Brian FITZ ALAN
|                 |        |                          |         \-----Agnes HAGET
|                 |        |                  /-----Sir Alan FITZ BRIAN
|                 |        |                 |        |         /-----Gilbert HANSARD
|                 |        |                 |         \-----Alice HANSARD
|                 |        |         /-----Sir Brian FITZ ALAN, Lord Fitz Alan
|                 |        |        |        |                  /-----Henry FITZ HERVEY, Lord Of Ravensworth
|                 |        |        |        |         /-----Randolf FITZ HENRY
|                 |        |        |        |        |         \-----Alice GREYSTOKE
|                 |        |        |         \-----Agnes FITZHENRY
|                 |        |        |                 |         /-----Adam De STAVELY
|                 |        |        |                  \-----Alice STAVELE
|                 |        |        |                           \-----Alice De PERCY
|                 |         \-----Catharine FITZ ALAN
|                 |                  \-----Maud
|         /-----Sir Robert GRAY, Lord Gray Of Rotherfield
|        |        |                           /-----Reynold BURGHERSH
|        |        |                  /-----Robert BURGHERSH, Lord Burghersh
|        |        |         /-----Sir Bartholomew De BURGHERSH, Lord Burghersh
|        |        |        |        |                  /-----Giles BADLESMERE
|        |        |        |        |         /-----Guncelin BADLESMERE
|        |        |        |         \-----Maud De BADLESMERE
|        |         \-----Maud BURGHERSH
|        |                 |                                    /-----Theobald Le BOTELER
|        |                 |                           /-----John De VERDUN
|        |                 |                          |         \-----Rohese De VERDUN
|        |                 |                  /-----Sir Theobald De VERDUN, Lord Verdun
|        |                 |                 |        |         /-----Gilbert De LACY
|        |                 |                 |         \-----Margaret De LACY, Lady Of Dulek
|        |                 |                 |                  \-----Isabel BIGOD
|        |                 |         /-----Sir Theobald De VERDUN, Lord Verdun
|        |                 |        |        |                  /-----Humphrey V De BOHUN, Earl Of Hereford And Essex
|        |                 |        |        |         /-----Humphrey VI De BOHUN
|        |                 |        |        |        |         \-----Maud D'EU
|        |                 |        |         \-----Margery De BOHUN
|        |                 |        |                 |         /-----William De BRAIOSE, Baron Of Brecknock Castle
|        |                 |        |                  \-----Eleanor De BRAIOSE
|        |                 |        |                           \-----Eve MARSHALL
|        |                  \-----Elizabeth De VERDUN
|        |                          |                           /-----Ralph MORTIMER, Baron Of Wigmore
|        |                          |                  /-----Sir Roger MORTIMER, Baron Of Wigmore
|        |                          |                 |         \-----Gladys DHU
|        |                          |         /-----Sir Edmund De MORTIMER, Lord Mortimer
|        |                          |        |        |         /-----William De BRAIOSE, Baron Of Brecknock Castle
|        |                          |        |         \-----Maud De BRAOISE
|        |                          |        |                  \-----Eve MARSHALL
|        |                           \-----Maud De MORTIMER
|        |                                   |                  /-----Sir Ingleman FIENNES, K.B., Lord Of Wendover
|        |                                   |         /-----Sir William FIENNES
|        |                                   |        |         \-----Isabel Of Conde
|        |                                    \-----Margaret FIENNES
|        |                                            |         /-----Jean De BRIENNE, Grand Butler Of France
|        |                                             \-----Blanche De BRIENNE, Lady Of Loupeland
|        |                                                      \-----Jeanne Dame De Chateau Du Loir
 \-----Joan GREY, Baroness Grey
          \-----Joan



Descendants of William DEINCOURT, Lord Deincourt
1. William DEINCOURT, Lord Deincourt m. Elizabeth BEAUMONT
m. Elizabeth BEAUMONT father: Henry BEAUMONT, Lord Beaumont mother: Elizabeth WILLOUGHBY