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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 09, Moels-Nugent. London: St Catherine Press, 1936. Reprinted (4 per page) Gloucester: A Sutton, 1982. Available at https://familysearch.org/search/catalog/271412 Information from this source tagged as [Ref: CP IX [Ap][p0-9].*].
  2. Clutterbuck, Robert, History and Antiquities of the County of Hertford, London: Nichols, Son, and Bentley, 1815-27, v1-3. Available at https://familysearch.org/search/catalog/188626. Information from this source tagged as [Ref: Clutterbuck Hertford v[1-3]p[0-9]*].
  3. 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:
third son [Ref: CP IX p88(f)],
parents:
[Ref: CP IX p88(f), Clutterbuck Hertford v1p481, Richardson RoyalAnc v4p118]
Sources for death Information
date:
[Ref: CP IX p88(f)]
Research Notes:
1382-1404: Dean of Salisbury [Ref: CP IX p88(f)]
Dean of Salisbury [Ref: Richardson RoyalAnc v4p118]

proved his father's will [Ref: CP IX p88(f)]

desired to be buried in the cathedral, near his father [Ref: CP IX p88(f)]



Pedigree of Thomas De MONTAGU, Dean Of Salisbury
                                                                /-----Richard De MONTAGU
                                                       /-----William De MONTAGU
                                                      |         \-----Alice
                                              /-----Drew De MONTAGU
                                             |         \-----Isabel
                                     /-----Sir William De MONTAGU
                                    |        |                  /-----Thomas BASSET
                                    |        |         /-----Sir Alan BASSET
                                    |        |        |         \-----Adeliza De DUNSTANVILLE
                                    |         \-----Aline BASSET
                                    |                 |         /-----Phillip De GAI
                                    |                  \-----Aline De GAI
                                    |                           \-----Sedzilia
                            /-----Simon De MONTAGU, Lord Montagu
                           |         \-----Bertha
                   /-----Sir William De MONTAGU, Lord Montagu
                  |        |                           /-----Amauri De St AMAND
                  |        |                          |         \-----(Unk) De VERDUN
                  |        |                  /-----Ralph De St AMAND
                  |        |                 |        |         /-----William PANTULF
                  |        |                 |         \-----Iseult PANTULF
                  |        |                 |                  \-----Joan De GOLDINGTON
                  |        |         /-----Amauri De St AMAND
                  |        |        |        |                  /-----Robert D'AUBIGNEY, Baron Of Cainhoe
                  |        |        |        |         /-----Robert D'AUBIGNEY, Baron Of Cainhoe
                  |        |        |         \-----Asceline DAUBENEY
                  |         \-----Hawise De St AMAND
          /-----Sir William De MONTAGU, Earl Of Salisbury
         |        |                                             /-----Thurston De MONTFORT
         |        |                                    /-----Henry De MONTFORT
         |        |                                   |         \-----Juliane MURDAC
         |        |                           /-----Thurston De MONTFORT
         |        |                          |        |         /-----Petrus CORBUCION
         |        |                          |         \-----Emma CORBUCION
         |        |                          |                  \-----Margaret
         |        |                  /-----Sir Piers De MONTFORT
         |        |                 |        |                  /-----Walter De CANTELOU
         |        |                 |        |         /-----Sir William De CANTELOU, Baron Of Eaton Bray
         |        |                 |        |        |         \-----Amice
         |        |                 |         \-----(Unk) De CANTELOU
         |        |                 |                 |         /-----Audulf De BRACI
         |        |                 |                  \-----Mesceline De BRACI
         |        |         /-----Sir Piers De MONTFORT
         |        |        |        |                           /-----Liulf
         |        |        |        |                  /-----Adam Of Aldithley
         |        |        |        |         /-----Henry Of Aldithley
         |        |        |        |        |        |         /-----Ralf FITZORM
         |        |        |        |        |         \-----Emma FITZRALF
         |        |        |         \-----Alice Of Aldithley
         |        |        |                 |                  /-----Roger MAINWARING
         |        |        |                 |         /-----Sir Ralph MAINWARING, Seneschal Of Chester
         |        |        |                  \-----Bertrad MAINWARING
         |        |        |                          |         /-----Hugh Of Kevelioc, Earl Of Chester
         |        |        |                           \-----Amicia Of Chester
         |         \-----Elizabeth De MONTFORT
         |                 |                  /-----Sir William De La MARE
         |                 |         /-----Henry De La MARE
         |                 |        |         \-----Basile
         |                  \-----Maud De La MARE
         |                          |                           /-----Ralph De NEVILLE
         |                          |                  /-----Hugh De NEVILLE
         |                          |                 |         \-----(Unk) RAFIN
         |                          |         /-----Sir John De NEVILLE
         |                          |        |        |         /-----Henry De CORNHILL
         |                          |        |         \-----Joan De CORNHILL
         |                          |        |                  \-----Alice De CURCY
         |                           \-----Joan De NEVILLE
         |                                   |                  /-----Reginald De COURTENAY
         |                                   |         /-----Sir Robert De COURTENAY, Baron Of Oakhampton
         |                                   |        |         \-----Hawise De COURCY
         |                                    \-----Hawise De COURTENAY
         |                                            |         /-----William De REVIERS, Earl Of Devon
         |                                             \-----Mary De VERNON
         |                                                      \-----Maud De BEAUMONT
 /-----John De MONTAGU, Lord Montagu
|        |                                                      /-----Ebal I Of Grandison
|        |                                             /-----Bartholomew Sire Of Grandison And Belmont
|        |                                            |         \-----Adelaide
|        |                                    /-----Ebal III Sire De Belmont
|        |                           /-----Ebal IV Sire De Grandison
|        |                          |         \-----Jordane
|        |                  /-----Pierre I Sire De Grandison
|        |                 |        |                           /-----Gerald I Of Geneva
|        |                 |        |                  /-----Aimon I Count Of Geneva
|        |                 |        |                 |         \-----Thietburga
|        |                 |        |         /-----Amadeus Count Of Geneva
|        |                 |        |        |        |         /-----Louis Lord Of Faucigny
|        |                 |        |        |         \-----Ida
|        |                 |         \-----Beatrice Of Genf
|        |                 |                  \-----(Unk) Of Domene
|        |         /-----Sir William De GRANDISON, Lord Grandison
|        |        |        |                                    /-----Ulrich Count Of Fenis, Count Of Neuenburg
|        |        |        |                           /-----Rudolf I Lord Of Neuenburg
|        |        |        |                  /-----Ulrich II Lord Of Neuenburg
|        |        |        |                 |        |         /-----Pierre Of Glane
|        |        |        |                 |         \-----Emma Of Glane
|        |        |        |         /-----Ulrich III Count of Neufchatel
|        |        |        |        |         \-----Bertha
|        |        |         \-----Agnes Of Neuenburg
|        |        |                  \-----Gertrude Von Eberstein
|         \-----Katharine De GRANDISON
|                 |                                             /-----La Sire De TREGOZ
|                 |                                    /-----William De TREGOZ
|                 |                           /-----Sir Robert TREGOZE
|                 |                          |         \-----Agnes
|                 |                  /-----Sir Robert TREGOZE, Baron Of Ewyas Harold
|                 |                 |        |                  /-----Robert De EWYES, Baron Of Ewyas Harold
|                 |                 |        |         /-----Robert De EWYES, Baron Of Ewyas Harold
|                 |                 |        |        |         \-----Sibil
|                 |                 |         \-----Sibilla De EWYAS
|                 |                 |                  \-----Petronilla
|                 |         /-----Sir John TREGOZE, Lord Tregoze
|                 |        |        |                           /-----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
|                 |        |         \-----Juliana De CANTELOU
|                 |        |                 |                  /-----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
|                  \-----Sibilla TREGOZE
|                          |                           /-----Fulk FITZ WARIN
|                          |                  /-----Fulk FITZ WARIN
|                          |                 |         \-----Eva
|                          |         /-----Sir Fulk FITZ WARIN, Robin Hood
|                          |        |        |                  /-----Geoffrey Vicount Of Dinan
|                          |        |        |         /-----Josselin De DINHAM
|                          |        |        |        |         \-----Orieldis
|                          |        |         \-----Hawise De DINAN
|                           \-----Mabel FITZWARINE
|                                   |                           /-----Hugh De Auberville
|                                   |                  /-----William De Auberville
|                                   |                 |         \-----Wimarca
|                                   |         /-----Robert De Auberville
|                                   |        |        |         /-----Ranulph De GLANVILLE, Chief Justiciar Of England
|                                   |        |         \-----Maud De GLANVILLE
|                                   |        |                  \-----Bertha De VALOINES
|                                    \-----Clarice DAUBERVILLE
|                                            |                  /-----Sanson De GESTLING
|                                            |         /-----Robert De GESTLING
|                                            |        |         \-----Maud
|                                             \-----Clarice De GESTLING
Thomas De MONTAGU, Dean Of Salisbury
|                  /-----Ralph De MONTHERMER, Lord Monthermer
|         /-----Thomas De MONTHERMER, Lord Monthermer
|        |        |                                             /-----Geoffrey Plantagenet Count Of Anjou, Duke Of Normandy
|        |        |                                    /-----Henry II Curt Mantel PLANTAGENET, King Of England
|        |        |                                   |         \-----Matilda
|        |        |                           /-----John Lackland PLANTAGENET, King Of England
|        |        |                          |        |         /-----William VIII Count Of Poitou, Duke Of Aquitaine
|        |        |                          |         \-----Eleanor Duchess Of Aquitaine
|        |        |                          |                  \-----Eleanor De CHASTELLERAULT
|        |        |                  /-----Henry III King Of England
|        |        |                 |        |                  /-----William Guillaume IV Tailefer, Count Of Angouleme
|        |        |                 |        |         /-----Aymer Tailefer, Count Of Angouleme
|        |        |                 |        |        |         \-----Marguerite De Turenne
|        |        |                 |         \-----Isabel Of Angouleme
|        |        |                 |                 |         /-----Peter Of France, Lord Of Courteney
|        |        |                 |                  \-----Alice De Courtenay
|        |        |                 |                           \-----Elizabeth De Courtenay
|        |        |         /-----Edward I King Of England
|        |        |        |        |                           /-----Alfonso II King Of Aragon
|        |        |        |        |                  /-----Alfonso II Count Of Provence
|        |        |        |        |                 |         \-----Sancha Of Castile
|        |        |        |        |         /-----Raymond Berengar IV Count Of Provence And Forcalquier
|        |        |        |        |        |        |         /-----Rainou Seigneur De Castellar, Count Of Forcalqu
|        |        |        |        |        |         \-----Gersenda II Of Sabran
|        |        |        |        |        |                  \-----Gersinde Of Forcalquier
|        |        |        |         \-----Eleanor Of Provence
|        |        |        |                 |                  /-----Humbert III Count Of Savoy
|        |        |        |                 |         /-----Thomas I Count Of Savoy
|        |        |        |                 |        |         \-----Beatrix Of Macon
|        |        |        |                  \-----Beatrice Of Savoy
|        |        |        |                          |         /-----William I Count Of Geneva
|        |        |        |                           \-----Margaret Of Geneva
|        |        |        |                                    \-----Beatrix De FAUCIGNY
|        |         \-----Joan PLANTAGENET
|        |                 |                                    /-----Alfonso VII King Of Castile And Leon
|        |                 |                           /-----Fernando II King Of Leon
|        |                 |                          |         \-----Berenguela Of Barcelona
|        |                 |                  /-----Alfonso IX King Of Leon
|        |                 |                 |        |         /-----Alfonso Henriques I King Of Portugal
|        |                 |                 |         \-----Urraca Of Portugal
|        |                 |                 |                  \-----Maud Of Savoy
|        |                 |         /-----Fernando III The Saint King Of Castile And Leon
|        |                 |        |        |                  /-----Sancho III King Of Castile
|        |                 |        |        |         /-----Alfonso VIII The Good King Of Castile
|        |                 |        |        |        |         \-----Blanche Of Navarre
|        |                 |        |         \-----Berengaria Of Castile
|        |                 |        |                 |         /-----Henry II Curt Mantel PLANTAGENET, King Of England
|        |                 |        |                  \-----Eleanor Of England
|        |                 |        |                           \-----Eleanor Duchess Of Aquitaine
|        |                  \-----Eleanor Of Castile
|        |                          |                           /-----Alberic I De DAMMARTIN
|        |                          |                  /-----Alberic II De DAMMARTIN, Count Of Dammartin
|        |                          |                 |         \-----(Unk)
|        |                          |         /-----Simon De DAMMARTIN, Count Of Aumale
|        |                          |        |        |         /-----Renaud Count Of Clermont
|        |                          |        |         \-----Maud Of Clermont
|        |                          |        |                  \-----Clemence Of Bar-Le-Duc
|        |                           \-----Joan De DAMMARTIN
|        |                                   |                  /-----John I De PONTHIEU, Count Of Ponthieu
|        |                                   |         /-----William III De PONTHIEU, Count Of Ponthieu
|        |                                   |        |         \-----Beatrice Of St. Pol
|        |                                    \-----Marie Countess Of Ponthieu
|        |                                            |         /-----Louis VII The Young King Of France
|        |                                             \-----Alice Of France
|        |                                                      \-----Constance Of Castile
 \-----Margaret De MONTHERMER, Baroness Monthermer
         |                                                      /-----William De BRAOS, Baron Of Bramber
         |                                             /-----William De BRAOS, Baron Of Bramber
         |                                            |         \-----Bertha Of Hereford
         |                                    /-----William De BRAOSE, Lord Of Gower
         |                                   |        |         /-----Bernard De St VALERY, Baron Of Beckley
         |                                   |         \-----Matilda De ST VALERIE De HAIA
         |                                   |                  \-----Matilda
         |                           /-----John De BRAOSE, Baron Of Bramber
         |                          |        |                  /-----Roger De CLARE, Earl Of Hertford
         |                          |        |         /-----Richard De CLARE, Earl Of Hertford, MC Surety
         |                          |        |        |         \-----Maud St. HILLARY
         |                          |         \-----Matilda DE CLARE
         |                          |                 |         /-----William Meullant FITZ ROBERT, Earl Of Gloucester
         |                          |                  \-----Amice MEULANT, Countess Of Gloucester
         |                          |                           \-----Hawise DeBEAUMONT
         |                  /-----William De BREUSE, Lord Breuse
         |                 |        |                           /-----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
         |                 |         \-----Margaret Of Wales
         |                 |                 |                  /-----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
         |         /-----Sir Piers De BREUSE
         |        |        |                                    /-----Everhard De ROS, Baron Of Helmsley
         |        |        |                           /-----Robert De ROS, Magna Charta Surety
         |        |        |                          |         \-----Roysia TRUSSEBUT
         |        |        |                  /-----Sir William De ROS, Baron Of Helmsley
         |        |        |                 |        |         /-----William The Lion King Of Scots
         |        |        |                 |         \-----Isabel Of Scotland
         |        |        |                 |                  \-----Isabel AVERNAL
         |        |        |         /-----Sir Robert De ROS, Baron Of Helmsley
         |        |        |        |        |                  /-----Herbert FITZ HERBERT
         |        |        |        |        |         /-----Piers FITZ HERBERT
         |        |        |        |        |        |         \-----Lucy Of Hereford
         |        |        |        |         \-----Lucia FITZ PIERS
         |        |        |        |                 |         /-----Robert FITZ ROGER, Baron Of Whalton
         |        |        |        |                  \-----Alice De WARKWORTH
         |        |        |        |                           \-----Margery De CHESNEY, Lady Of Horsford
         |        |         \-----Mary De ROS
         |        |                 |                           /-----William II Le Breton D'ALBINI, Lord Of Belvoir
         |        |                 |                  /-----William D'ALBINI, Lord Of Belvoir, MC Surety
         |        |                 |                 |         \-----Maud FITZ ROBERT
         |        |                 |         /-----William D'ALBINI, Baron Of Belvoir
         |        |                 |        |        |         /-----Odinel De UMFRAVILLE, Baron Of Prudhoe
         |        |                 |        |         \-----Margery De UMFRAVILLE
         |        |                 |        |                  \-----Alice De LUCY
         |        |                  \-----Isabel D'ALBINI
         |        |                           \-----Isabel
          \-----Margaret De BRAOSE
                   \-----Agnes De CLIFFORD



Descendants of Thomas De MONTAGU, Dean Of Salisbury
1. Thomas De MONTAGU, Dean Of Salisbury