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Family:
Bibliography
  1. Cokayne, George Edward, Complete Peerage of England, Scotland, Ireland, Great Britain, and the United Kingdom, extant, extinct, or dormant, vol 11, Ridley-Sinclair. London: St Catherine Press, 1949. Reprinted (4 per page) Gloucester: A Sutton, 1982. Available at https://familysearch.org/search/catalog/27141 Information from this source tagged as [Ref: CP XI [Ap][p0-9].*].
  2. 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 6 mo at father's death [Ref: CP XI p367],
parents:
[Ref: CP XI p327, CP XI p367, Richardson RoyalAnc v4p542]
Sources for death Information
date:
13 Nov 1361 [Ref: CP XI p327(k)]
1361 [Ref: CP XI p327]
before 14 Oct 1361 [Ref: CP XI p367]
Research Notes:
heir of his brother Adam [Ref: CP XI p367]
heir of his mother [Ref: CP XI p327(k)]



Pedigree of John De St PHILIBERT
                                              /-----Hugh De St PHILIBERT
                                     /-----Hugh De St PHILIBERT
                            /-----Hugh De St PHILIBERT
                   /-----Sir Hugh De St PHILIBERT
          /-----Sir John De St PHILIBERT
         |        |         /-----Bennet De BLAKENHAM
         |         \-----Alice De BLAKENHAM
         |                 |         /-----William De HASTINGS
         |                  \-----Joan De HASTINGS
         |                           \-----Isabel
 /-----John De St PHILIBERT, Lord St Philibert
|        |                           /-----Guy I BOTETOURT
|        |                  /-----Sir Guy II BOTETOURT
|        |         /-----John De BOTETOURTE, Lord Botetourte
|        |        |         \-----Ada
|         \-----Ada De BOTETOURTE
|                 |                                             /-----William FITZ OTTO
|                 |                                    /-----Otto FITZ WILLIAM
|                 |                                   |         \-----Egidia
|                 |                           /-----William FITZ OTTO
|                 |                          |         \-----Margaria
|                 |                  /-----Otto FITZ WILLIAM
|                 |                 |        |         /-----William De DIVA
|                 |                 |         \-----Matilda De DIVA
|                 |                 |                  \-----Matilda De WATERVILLE
|                 |         /-----Sir Thomas FITZ OTES
|                  \-----Maud FITZ THOMAS
|                          |                                    /-----Robert BEAUCHAMP
|                          |                           /-----Payne De BEAUCHAMP, Baron Beauchamp Of Bedford
|                          |                  /-----Simon De BEAUCHAMP, Baron Beauchamp Of Bedford
|                          |                 |        |         /-----Alberic II De VERE, Baron Of Hedingham
|                          |                 |         \-----Rohese De VERE
|                          |                 |                  \-----Adeliza De CLARE
|                          |         /-----William De BEAUCHAMP, Baron Beauchamp Of Bedford
|                          |        |         \-----Isabella
|                           \-----Beatrice De BEAUCHAMP
|                                   |                           /-----Geoffrey Plantagenet Count Of Anjou, Duke Of Normandy
|                                   |                  /-----Henry II Curt Mantel PLANTAGENET, King Of England
|                                   |                 |         \-----Matilda
|                                   |         /-----William LONGESPEE, Earl of Salisbury
|                                   |        |        |         /-----Ralph V De TOENI, Baron Of Flamstead
|                                   |        |         \-----Ida Countess Of Norfolk
|                                   |        |                  \-----Margaret De BEAUMONT
|                                    \-----Ida LONGSPEE
|                                            |                  /-----Patrick De SALISBURY, Earl Of Salisbury
|                                            |         /-----William FITZ PATRICK, Earl Of Salisbury
|                                            |        |         \-----Ela TALVAS
|                                             \-----Ela Of Salisbury
|                                                     |         /-----Robert III Lord Of Vitre
|                                                      \-----Eleanor De VITRE
|                                                               \-----Emma Of Dinan
John De St PHILIBERT
|                                                               /-----John De PORT, Baron Of Basing
|                                                      /-----Adam De PORT, Baron Of Basing
|                                                     |         \-----Maud
|                                             /-----William De St JOHN, Baron Of Basing
|                                            |        |         /-----Rainald De ORVAL
|                                            |         \-----Mabel De ORVAL
|                                            |                  \-----Muriel De St JOHN
|                                    /-----Sir Robert De St JOHN, Baron Of Basing
|                                   |        |                  /-----Ralph V De TOENI, Baron Of Flamstead
|                                   |        |         /-----Roger IV De TOENI, Baron Of Flamstead
|                                   |        |        |         \-----Margaret De BEAUMONT
|                                   |         \-----Godeheut
|                                   |                 |         /-----Richard I De BEAUMONT, Viscount Of Maine
|                                   |                  \-----Constance De BEAUMONT
|                                   |                           \-----Lucie De L'AIGLE
|                           /-----Sir John De St JOHN, Baron Of Basing
|                          |        |                           /-----Walter De CANTELOU
|                          |        |                  /-----Sir William De CANTELOU, Baron Of Eaton Bray
|                          |        |                 |         \-----Amice
|                          |        |         /-----Sir William De CANTELOU, Baron Of Eaton Bray
|                          |        |        |        |         /-----Audulf De BRACI
|                          |        |        |         \-----Mesceline De BRACI
|                          |         \-----Agnes De CAUNTELO
|                          |                 |                  /-----Hugh De GOURNAY
|                          |                 |         /-----Hugh De GOURNAY
|                          |                 |        |         \-----Melisende De COUCY
|                          |                  \-----Millicent De GOURNAY
|                          |                          |         /-----Alberic II De DAMMARTIN, Count Of Dammartin
|                          |                           \-----Julia De DAMMARTIN
|                          |                                    \-----Maud Of Clermont
|                  /-----Sir John De St JOHN, Lord St John
|                 |        |                                    /-----Herbert FITZ HERBERT
|                 |        |                           /-----Herbert FITZ HERBERT
|                 |        |                          |         \-----Sibyl CORBET
|                 |        |                  /-----Piers FITZ HERBERT
|                 |        |                 |        |         /-----Miles FITZ WALTER, Earl Of Hereford
|                 |        |                 |         \-----Lucy Of Hereford
|                 |        |                 |                  \-----Sibyl De NEUFMARCHE
|                 |        |         /-----Sir Reynold FITZ PIERS
|                 |        |        |        |                  /-----Roger FITZ RICHARD, Baron Of Warkworth
|                 |        |        |        |         /-----Robert FITZ ROGER, Baron Of Whalton
|                 |        |        |        |        |         \-----Alice De VERE
|                 |        |        |         \-----Alice De WARKWORTH
|                 |        |        |                 |         /-----William De CHESNEY
|                 |        |        |                  \-----Margery De CHESNEY, Lady Of Horsford
|                 |        |        |                           \-----Gilla
|                 |         \-----Alice FITZ REYNOLD
|                 |                 |         /-----William STANFORD
|                 |                  \-----Alice STANFORD
|         /-----Hugh De St JOHN, Lord St John
|        |        |                                             /-----Renaud De COURTENAY
|        |        |                                    /-----Reginald De COURTENAY
|        |        |                                   |         \-----(Unk)
|        |        |                           /-----Sir Robert De COURTENAY, Baron Of Oakhampton
|        |        |                          |        |         /-----William De COURCY
|        |        |                          |         \-----Hawise De COURCY
|        |        |                          |                  \-----Maud D'AVRANCHES, Lady Du Sap In Normandy
|        |        |                  /-----Sir John De COURTENAY, Baron Of Oakhampton
|        |        |                 |        |                  /-----Baldwin De REVIERS, Earl Of Devon
|        |        |                 |        |         /-----William De REVIERS, Earl Of Devon
|        |        |                 |        |        |         \-----Adelise
|        |        |                 |         \-----Mary De VERNON
|        |        |                 |                 |         /-----Sir Robert De DUNSTANVILLE, Count De Meulan
|        |        |                 |                  \-----Maud De BEAUMONT
|        |        |                 |                           \-----Maud FITZ ROY
|        |        |         /-----Sir Hugh De COURTENAY, Baron Of Oakhampton
|        |        |        |        |                           /-----Aubrey III De VERE, Earl Of Oxford
|        |        |        |        |                  /-----Robert De VERE, Earl Of Oxford, MC Surety
|        |        |        |        |                 |         \-----Agnes Lucia Of Essex
|        |        |        |        |         /-----Sir Hugh De VERE, Earl Of Oxford
|        |        |        |        |        |        |         /-----Hugh De BOLEBEC, Baron Of Whitchurch
|        |        |        |        |        |         \-----Isabel De BOLEBEC
|        |        |        |         \-----Isabel De VERE
|        |        |        |                 |                  /-----Robert De QUINCEY
|        |        |        |                 |         /-----Saire De QUINCEY, Earl Of Winchester, MC Suret
|        |        |        |                 |        |         \-----Orabella
|        |        |        |                  \-----Hawise De QUINCEY
|        |        |        |                          |         /-----Sir Robert De BEAUMONT, Earl Of Leicester
|        |        |        |                           \-----Margaret BEAUMONT
|        |        |        |                                    \-----Petronilla De GRANTMESNIL
|        |         \-----Isabel COURTENAY
|        |                 |                                    /-----Geoffrey Le DESPENSER
|        |                 |                           /-----Thomas Le DESPENSER
|        |                 |                  /-----Sir Hugh Le DESPENSER
|        |                 |                 |         \-----Recuara
|        |                 |         /-----Sir Hugh Le DESPENSER, Justiciar Of England
|        |                  \-----Eleanor Le DESPENSER
|        |                          |                           /-----Thomas BASSET
|        |                          |                  /-----Sir Alan BASSET
|        |                          |                 |         \-----Adeliza De DUNSTANVILLE
|        |                          |         /-----Sir Philip BASSET, Justiciar Of England
|        |                          |        |        |         /-----Phillip De GAI
|        |                          |        |         \-----Aline De GAI
|        |                          |        |                  \-----Sedzilia
|        |                           \-----Aline BASSET
|        |                                   |                  /-----Godfrey De LOUVAINE
|        |                                   |         /-----Matthew De LOUVAINE, Baron Of Little Easton
|        |                                   |        |         \-----Delicia (Alice) De HASTINGS
|        |                                    \-----Hawise De LOUVAINE
|        |                                             \-----Muriel (Amy)
 \-----Margaret De St JOHN
         |                                                      /-----Hugh WAKE
         |                                             /-----Baldwin WAKE, Baron Of Bourne
         |                                            |         \-----Emma FITZ GILBERT
         |                                    /-----Baldwin WAKE, Baron Of Bourne
         |                                   |        |         /-----William Du HOMMET, Constable Of Normandy
         |                                   |         \-----Agnes Du HOMMET
         |                                   |                  \-----Lucy De BRUS
         |                           /-----Hugh WAKE, Baron Of Bourne
         |                          |        |                  /-----Thomas De BRIWERE
         |                          |        |         /-----Sir William De BRIWERE, Baron Of Horsley
         |                          |        |        |         \-----(Unk) De ALBEMARLE
         |                          |         \-----Isabel BRIWERRE
         |                          |                 |         /-----Hubert De VAUX, Baron Of Irthington
         |                          |                  \-----Beatrice De VALLE
         |                          |                           \-----Grecia
         |                  /-----Sir Baldwin WAKE, Baron Of Bourne
         |                 |        |                           /-----Robert De STUTEVILLE, Baron Of Cottingham
         |                 |        |                  /-----Nicholas De STUTEVILLE, Baron Of Cottingham
         |                 |        |                 |         \-----Helwise
         |                 |        |         /-----Nicholas De STUTEVILLE, Baron Of Cottingham
         |                 |        |        |         \-----(Unk)
         |                 |         \-----Joan De STUTEVILLE
         |                 |                 |                  /-----Uchtred Of Galloway
         |                 |                 |         /-----Roland Lord Of Galloway, Constable Of Scotland
         |                 |                 |        |         \-----Gunnild Of Dunbar
         |                 |                  \-----Devorguille Of Galloway
         |                 |                          |         /-----Richard De MORVILLE, Constable Of Scotland
         |                 |                           \-----Elena De MORVILLE
         |                 |                                    \-----Avice De LANCASTER
         |         /-----Sir Hugh WAKE
         |        |        |                                    /-----Saher De QUINCEY, Lord Of Buckby In Northampto
         |        |        |                           /-----Robert De QUINCEY
         |        |        |                          |         \-----Maud De ST LIZ
         |        |        |                  /-----Saire De QUINCEY, Earl Of Winchester, MC Suret
         |        |        |                 |        |         /-----Ness Of Leuchars
         |        |        |                 |         \-----Orabella
         |        |        |         /-----Robert De QUINCY, Lord Of Ware
         |        |        |        |        |                  /-----Sir Robert II De Beaumont, Earl Of Leicester
         |        |        |        |        |         /-----Sir Robert De BEAUMONT, Earl Of Leicester
         |        |        |        |        |        |         \-----Amicia De Gael
         |        |        |        |         \-----Margaret BEAUMONT
         |        |        |        |                 |         /-----William De GRANTMESNIL
         |        |        |        |                  \-----Petronilla De GRANTMESNIL
         |        |         \-----Hawise De QUINCY
         |        |                 |                           /-----Owain Gwynedd Prince Of Gwynedd
         |        |                 |                  /-----Iorworth Drwyndwn Prince Of Gwynedd
         |        |                 |                 |         \-----Gladys Ferch Llywarch
         |        |                 |         /-----Llewellyn Fawr The Great AP IORWORTH, Prince Of North Wales
         |        |                 |        |        |         /-----Madog Ap Maredudd, Prince Of Powys Fadog
         |        |                 |        |         \-----Margred Ferch Madog
         |        |                 |        |                  \-----Susanna Ferch Gruffudd Ap Cynan
         |        |                  \-----Elen
         |        |                          |                  /-----Henry II Curt Mantel PLANTAGENET, King Of England
         |        |                          |         /-----John Lackland PLANTAGENET, King Of England
         |        |                          |        |         \-----Eleanor Duchess Of Aquitaine
         |        |                           \-----Joan
         |        |                                   |         /-----William FERRERS, Earl Of Derby
         |        |                                    \-----Agatha De FERRERS
         |        |                                             \-----Sibyl De BRAOISE
          \-----Mirabel WAKE
                  |         /-----Baldwin De BOLANY
                   \-----Joan De BOLANY



Descendants of John De St PHILIBERT
1. John De St PHILIBERT