Individual Page


Family:
Marriage: Children:
  1. John De FORZ Birth: 1 Death: Before 11 Aug 1260
  2. Thomas De FORZ Birth: 9 Sep 1253 Death: Before 6 Apr 1269
  3. William De FORZ Birth: 3 Death: Oxford
  4. Amice De FORZ Birth: 4 Death: Before 6 Apr 1269
  5. Aveline De FORZ Birth: 20 Jan 1258/9 in Burstwick, Yorkshire Death: 10 Nov 1274 in Stockwell, Surrey
  6. Joan De FORZ
  7. Sibyl De FORZ
  8. Mabel De FORZ

Bibliography
  1. Cokayne, George Edward, Complete Peerage of England, Scotland, Ireland, Great Britain, and the United Kingdom, extant, extinct, or dormant, vol 01 A-Basing. London: St Catherine Press, 1910. Reprinted (4 per page) Gloucester: A Sutton, 1982. Available at https://familysearch.org/search/catalog/271412 Vol 1 also available at http://archive.org/completepeerageo01coka Information from this source tagged as [Ref: CP I [Ap][p0-9].*].
  2. 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].*].
  3. Cokayne, George Edward, Complete Peerage of England, Scotland, Ireland, Great Britain, and the United Kingdom, extant, extinct, or dormant, vol 07 Hussee-Lincolnshire. London: St Catherine Press, 1929. Reprinted (4 per page) Gloucester: A Sutton, 1982. Available at https://familysearch.org/search/catalog/271412 Information from this source tagged as [Ref: CP VII [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. 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]*].
  6. Schwennicke, Detlev, ed., Europaische Stammtafeln: Stammtafeln zur Geschichte der europaischen Staaten, New Series. II: Die Ausserdeutschen Staaten Die Regierenden Hauser der Ubrigen Staaten Europas. Marburg: Verlag von J. A. Stargardt, 1984. Information from this source tagged as [Ref: ES II #[0-9]*].
  7. Faris, David, Plantagenet ancestry of seventeenth century colonists: the descent from the later Plantagenet Kings of England, Henry III, Edward I, Edward II, and Edward III, of emigrants from England and Wales to the North American colonies before 1701, second edition. Boston: New England Historical Genealogical Society, 1999. NYPL APR (New England) 01-1513. Information from this source tagged as [Ref: Faris PA2 p[0-9ivxc]*].
  8. Paget, Gerald, The Lineage and Ancestry of H.R.H. Prince Charles, Prince of Wales. London: Charles Skilton Ltd, 1977. Nypl ARF+ 78-835. Information from this source tagged as [Ref: Paget HRHCharles p[0-9]*].
  9. 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 v2p[0-9]*].
  10. 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 v3p[0-9]*].
  11. Sanders, I. J., English Baronies, A Study of Their Origin and Descent 1086-1327. Oxford: Clarendon Press, 1960. Information from this source tagged as [Ref: Sanders Baronies p[0-9]*].

Sources for birth and parent Information
date:
[Ref: CP IV p322, Richardson RoyalAnc v2p189]
Jul 1237, elder dau [Ref: CP I p355],
parents:
[Ref: CP I p355, CP IV AppH p673, CP IV p322, CP VIII p48f, Clutterbuck Hertford v3p198, Richardson RoyalAnc v2p188, Sanders Baronies p25],
father:
[Ref: CP VII p386 (with corr in XIV p421), Clutterbuck Hertford v2p261, Paget HRHCharles p17, Richardson RoyalAnc v3p478, Sanders Baronies p138, Sanders Baronies p142(5)],
brother:
Baldwin, 7th Earl of Devon [Ref: CP VII p386 (with corr in XIV p421)]
Sources for death Information
date:
[Ref: CP I p356, CP IV p322, CP IV p323, Richardson RoyalAnc v2p190]
1293 [Ref: CP IV AppH p660, CP IV AppH p673, CP VIII p48f, Sanders Baronies p138, Sanders Baronies p144]
1294 [Ref: Sanders Baronies p25(3)],
place:
[Ref: CP I p356, CP IV p322, CP IV p323, Richardson RoyalAnc v2p190]
Sources for burial Information
place:
[Ref: CP I p356, CP IV p323, Richardson RoyalAnc v2p190]
Sources with Information about marriage to William De FORZ, Count Of Aumale
date:
1248-9 [Ref: Richardson RoyalAnc v2p189]
1248/9 [Ref: CP I p355]
later marriage of William [Ref: Paget HRHCharles p155]
second marriage of William [Ref: Clutterbuck Hertford v2p261, Richardson RoyalAnc v3p476, Sanders Baronies p142(5)],
names:
[Ref: CP IV p322, CP VIII p48f, Clutterbuck Hertford v3p198, Sanders Baronies p138, Sanders Baronies p144, Sanders Baronies p25],
child:
[Ref: CP I p356(b), CP I p356, CP IV p323, CP VII p386 (with corr in XIV p421), Clutterbuck Hertford v2p261, ES II #83, Faris PA2 p202, Paget HRHCharles p17, Richardson RoyalAnc v2p189, Richardson RoyalAnc v3p476]
Research Notes:
8th Countess of Devon, of Earldom cr 1141 [Ref: CP IV p322]
Countess of Devon [Ref: CP IV AppH p660]
Countess of Aumale and Devon, and Lady of the Isle [Ref: CP I p355]
Countess of Aumale and Devon [Ref: CP IV p322, Richardson RoyalAnc v2p188]
Lady of the Isle of Wight [Ref: CP IV p322]

sister and heir of Baldwin de Revierd, Earl of Derby [Ref: CP IV p322]

sole heir of her brother Baldwin Earl of Devon [Ref: Clutterbuck Hertford v2p261]

Aug 9 1260: had livery of her dower [Ref: CP I p355]

received Barony of Cockermouth and 1/2 of Barony of Allendale (Papcastle) in dower [Ref: Sanders Baronies p134]

1262: heiress to her brother Baldwin [Ref: Richardson RoyalAnc v2p190]

1262: inherited Barony of Plympton from brother [Ref: Sanders Baronies p137]

heir of her brother Baldwin who d.s.p 1262, Earl of Devon [Ref: Sanders Baronies p142(5)]

on death of husband, Lord Edward was granted guardianship of the heir and the lands of the Barony of Burstwick and Skipton; he sold these rights to Isabel and her mother, Amice [Ref: Sanders Baronies p25]

Aug 17 1264: had livery of the lands of her brother Baldwin Earl of Devon [Ref: CP I p355]

1260-7: controlled the baronies of Burstwick and Skipton [Ref: Sanders Baronies p25]

1268: following a quarrel between Isabel and her mother Amice, preparations were made to divide their interest in Burstwick and Skipton, but the delays which ensued led the king to occupy the lands in 1268 [Ref: Sanders Baronies p25]

Nov 20 1268: King granted her marriage to his son Edmond [Ref: CP I p355(j)]

d.s.p.s [Ref: CP I p356, CP IV AppH p673, CP IV p322, Sanders Baronies p138, Sanders Baronies p144]

on her death the Barony of Cockermouth and 1/2 of Barony of Allendale (Papcastle) escheated to crown [Ref: Sanders Baronies p134]

on her death the heir for Plympton was Hugh de Courtenay d.1340 lord of Okehampton [Ref: Sanders Baronies p138]

on her death the lands of 1/2 of the Barony of Stogursey passed to the crown, and were broken up with the result that this half of the fief lost its identity [Ref: Sanders Baronies p144]

Warin de Lisle d.1296 was found to be one of her heirs [Ref: CP VIII p48f]



Pedigree of Isabel De REDVERS
                                              /-----Baldwin De REVIERS
                                             |        |         /-----Osmund De Centumvillis, Vicount Of Vernon
                                             |         \-----(Unk Dau) De Centumvillis
                                             |                  \-----Satselina
                                     /-----Richard De REVIERS, Seigneur Of Reviers, Vernon,
                            /-----Baldwin De REVIERS, Earl Of Devon
                           |        |         /-----William PEVEREL, Baron Of Peverel
                           |         \-----Adelise PEVEREL
                           |                  \-----Adeline
                   /-----William De REVIERS, Earl Of Devon
                  |        |         /-----Nigel
                  |         \-----Adelise
                  |                 |         /-----Alvred Lord Of Barnstaple And Totnes
                  |                  \-----(Unk Dau) De TOTNES
          /-----Baldwin De REVIERS
         |        |                                             /-----Humphrey De Vieilles
         |        |                                    /-----Roger De Beaumont
         |        |                                   |         \-----Aubreye De La Haie
         |        |                           /-----Sir Robert De Beaumont, Earl Of Leicester
         |        |                          |        |         /-----Waleran Count Of Meulan
         |        |                          |         \-----Adelise Of Meulan
         |        |                          |                  \-----Ode
         |        |                  /-----Waleran De BEAUMONT, Earl Of Worcester
         |        |                 |        |                  /-----Henry I King Of France
         |        |                 |        |         /-----Hugh Magnus Duke Of France
         |        |                 |        |        |         \-----Anne Of Kiev
         |        |                 |         \-----Isabel De Vermandois, Countess Of Leicester
         |        |                 |                 |         /-----Herbert IV Count Of Vermandois
         |        |                 |                  \-----Adelaide De Vermandois, Countess Of Vermandois
         |        |                 |                           \-----Adela De Valois
         |        |         /-----Sir Robert De DUNSTANVILLE, Count De Meulan
         |        |        |        |                           /-----Amauri III De MONTFORT
         |        |        |        |                  /-----Simon I De MONTFORT, Seigneur Of Montfort L'Amau
         |        |        |        |                 |         \-----Bertrade De GOMMETZ
         |        |        |        |         /-----Amauri IV De MONTFORT, Count Of Evereux
         |        |        |        |        |        |         /-----Richard Count Of Evereux
         |        |        |        |        |         \-----Agnes Of Evereux
         |        |        |        |        |                  \-----Godehildie
         |        |        |         \-----Agnes De MONTFORT
         |        |        |                 |                  /-----Adam Of Garlande
         |        |        |                 |         /-----Anscau De Garlande, Seneschal Of France
         |        |        |                  \-----Agnes De Garlande
         |        |        |                           \-----(Unk) De Montmorency
         |         \-----Maud De BEAUMONT
         |                 |                                    /-----Robert I The Devil Duke Of Normandy
         |                 |                           /-----William The Conqueror King Of England
         |                 |                          |         \-----Herleve Of Falaise
         |                 |                  /-----Henry I Beauclerc King Of England
         |                 |                 |        |         /-----Baldwin V Count Of Flanders
         |                 |                 |         \-----Maud Of Flanders
         |                 |                 |                  \-----Adelaide Of France
         |                 |         /-----Reginald De DUNSTANVILLE, Earl Of Cornwall
         |                 |        |        |                  /-----Corbet
         |                 |        |        |         /-----Robert CORBET, Lord of Alcester
         |                 |        |         \-----Sibyl CORBET
         |                  \-----Maud FITZ ROY
         |                          |                  /-----Richard Fitz Turold, Baron Of Cardinham
         |                          |         /-----William Fitz Richard, Baron Of Cardinham
         |                          |        |         \-----Emma
         |                           \-----Mabel
         |                                    \-----Aanor
 /-----Baldwin De REDVERS, Earl Of Devon
|        |                                    /-----Gerold Marshal
|        |                           /-----Robert Fitz Gerold
|        |                  /-----Henry FITZ GEROLD, Chamberlain
|        |                 |        |                  /-----Huard De NOERS
|        |                 |        |         /-----Ralph De NOERS
|        |                 |         \-----Alice De NOERS
|        |                 |                  \-----Agnes
|        |         /-----Warin FITZGEROLD, Chamberlain
|        |        |         \-----Maud De CHESNEY
|         \-----Margaret FITZGEROLD
|                 |                                             /-----Robert De COURCY
|                 |                                    /-----Richard De CURCY
|                 |                                   |         \-----Hebrea
|                 |                           /-----William De CURCY
|                 |                          |         \-----Wandelmode
|                 |                  /-----William De CURCY, Baron Of Stogursey
|                 |                 |        |                  /-----William De MOULINS
|                 |                 |        |         /-----William De FALAISE, Baron Of Stogursey
|                 |                 |        |        |         \-----Aubree
|                 |                 |         \-----Emma De FALAISE
|                 |                 |                 |         /-----Serlo De BURCI, Baron Of Blagdon
|                 |                 |                  \-----Geva De BURCI
|                 |         /-----William De CURCY, Baron Of Stogursey
|                 |        |        |                           /-----Ranulph I De MESCHINES, Vicomte De Bayeux
|                 |        |        |                  /-----Ranulph II De MESCHINES, Vicomte De Bayeux
|                 |        |        |                 |         \-----Alice Of Normandy
|                 |        |        |         /-----William De MESCHINES, Baron Of Egremont
|                 |        |        |        |        |         /-----Richard Le Goz, Vicomte D'Avranches
|                 |        |        |        |         \-----Margaret Le Goz
|                 |        |        |        |                  \-----Emma
|                 |        |         \-----Avice De RUMELLI
|                 |        |                 |                  /-----Rainfred De RUMILLY
|                 |        |                 |         /-----Robert De RUMILLY, Baron Of Skipton
|                 |        |                  \-----Cecily De ROMILLY
|                  \-----Alice De CURCY
|                          |                                    /-----Ralph II De Warrene
|                          |                           /-----William De Warrene, Earl Of Surrey
|                          |                          |         \-----Emma
|                          |                  /-----William II De Warrene, Earl Of Surrey
|                          |                 |        |         /-----Gherbod The Fleming, Advocate Of St. Bertins
|                          |                 |         \-----Gundred
|                          |         /-----Reginald De WARENNE
|                          |        |        |                  /-----Henry I King Of France
|                          |        |        |         /-----Hugh Magnus Duke Of France
|                          |        |        |        |         \-----Anne Of Kiev
|                          |        |         \-----Isabel De Vermandois, Countess Of Leicester
|                          |        |                 |         /-----Herbert IV Count Of Vermandois
|                          |        |                  \-----Adelaide De Vermandois, Countess Of Vermandois
|                          |        |                           \-----Adela De Valois
|                           \-----Gundrada De WARENNE
|                                   |                           /-----William De WORMEGAY, Baron Of Wormegay
|                                   |                  /-----Richard De WORMEGAY, Baron Of Wormegay
|                                   |         /-----William De WORMEGAY, Baron Of Wormegay
|                                    \-----Alice De WORMEGAY
Isabel De REDVERS
|                                                               /-----Gilbert Count Of Brionne
|                                                      /-----Richard FITZ GILBERT De CLARE, Baron Of Clare
|                                             /-----Gilbert FITZ RICHARD, Baron Of Clare
|                                            |        |         /-----Walter Giffard Lord Of Longueville
|                                            |         \-----Rohese GIFFARD
|                                            |                  \-----Ermengarde FLATEL
|                                    /-----Richard FITZ GILBERT De CLARE, Baron Of Clare
|                                   |        |                  /-----Renaud Count Of Clermont
|                                   |        |         /-----Hugh Count Of Clermont
|                                   |        |        |         \-----Ermengardis
|                                   |         \-----Adeliza De CLERMONT
|                                   |                 |         /-----Hildouin III De Rameru, Count Of Montdidier And Roucy
|                                   |                  \-----Margaret De Roucy
|                                   |                           \-----Adele De Roucy
|                           /-----Roger De CLARE, Earl Of Hertford
|                          |        |                           /-----Ranulph I De MESCHINES, Vicomte De Bayeux
|                          |        |                  /-----Ranulph II De MESCHINES, Vicomte De Bayeux
|                          |        |                 |         \-----Alice Of Normandy
|                          |        |         /-----Ranulph III De MESCHINES, Earl Of Chester
|                          |        |        |        |         /-----Richard Le Goz, Vicomte D'Avranches
|                          |        |        |         \-----Margaret Le Goz
|                          |        |        |                  \-----Emma
|                          |         \-----Adeliza Le MESCHIN
|                          |                 |                  /-----(Unk)
|                          |                 |         /-----Thorold Of Buckingham, Sheriff Of Lincoln
|                          |                  \-----Lucia Of East Angies
|                          |                          |         /-----William MALET
|                          |                           \-----(Unk Dau)
|                          |                                    \-----Esilia CRISPIN
|                  /-----Richard De CLARE, Earl Of Hertford, MC Surety
|                 |        |                                    /-----(Unk) De St James
|                 |        |                           /-----Eudo De St James
|                 |        |                  /-----Hasculf De St JAMES, Baron Of Field Dalling
|                 |        |         /-----James De St HILARY, Baron Of Field Dalling
|                 |        |        |         \-----Matilda
|                 |         \-----Maud St. HILLARY
|                 |                  \-----Aveline
|         /-----Sir Gilbert De CLARE, Earl Of Hertford And Glouceste
|        |        |                                             /-----Robert I The Devil Duke Of Normandy
|        |        |                                    /-----William The Conqueror King Of England
|        |        |                                   |         \-----Herleve Of Falaise
|        |        |                           /-----Henry I Beauclerc King Of England
|        |        |                          |        |         /-----Baldwin V Count Of Flanders
|        |        |                          |         \-----Maud Of Flanders
|        |        |                          |                  \-----Adelaide Of France
|        |        |                  /-----Robert The Consul De CAEN, Earl Of Gloucester
|        |        |         /-----William Meullant FITZ ROBERT, Earl Of Gloucester
|        |        |        |        |                           /-----Hamon-Aux-Dents Lord Of Torigny
|        |        |        |        |                  /-----Hamon Sheriff Of Kent
|        |        |        |        |         /-----Robert FITZ HAMOND, Lord Of Tewkesbury
|        |        |        |         \-----Maud FITZ HAMOND
|        |        |        |                 |                  /-----Roger De Montgomery, Seigneur Of Montgomery
|        |        |        |                 |         /-----Roger De Montgomery, Earl Of Shrewsbury
|        |        |        |                 |        |         \-----Emma
|        |        |        |                  \-----Sybil De Montgomery
|        |        |        |                          |         /-----William II TALVAS
|        |        |        |                           \-----Mabel De Belesme
|        |        |        |                                    \-----Hildeburg
|        |         \-----Amice MEULANT, Countess Of Gloucester
|        |                 |                                    /-----Humphrey De Vieilles
|        |                 |                           /-----Roger De Beaumont
|        |                 |                          |         \-----Aubreye De La Haie
|        |                 |                  /-----Sir Robert De Beaumont, Earl Of Leicester
|        |                 |                 |        |         /-----Waleran Count Of Meulan
|        |                 |                 |         \-----Adelise Of Meulan
|        |                 |                 |                  \-----Ode
|        |                 |         /-----Sir Robert II De Beaumont, Earl Of Leicester
|        |                 |        |        |                  /-----Henry I King Of France
|        |                 |        |        |         /-----Hugh Magnus Duke Of France
|        |                 |        |        |        |         \-----Anne Of Kiev
|        |                 |        |         \-----Isabel De Vermandois, Countess Of Leicester
|        |                 |        |                 |         /-----Herbert IV Count Of Vermandois
|        |                 |        |                  \-----Adelaide De Vermandois, Countess Of Vermandois
|        |                 |        |                           \-----Adela De Valois
|        |                  \-----Hawise DeBEAUMONT
|        |                          |                           /-----Ralph De Gael, Earl Of Norfolk
|        |                          |                  /-----Ralph De Gael De Montfort, Earl Of Norfolk
|        |                          |                 |         \-----Getha
|        |                          |         /-----Ralph De MONTFORT, Seigneur Of Montfort-Gael
|        |                          |        |        |         /-----William Fitz Osbern, Earl Of Hereford
|        |                          |        |         \-----Emma Fitz Osbern
|        |                          |        |                  \-----Adelise De TONI
|        |                           \-----Amicia De Gael
 \-----Amicia De CLARE
         |                                    /-----Robert Marshal
         |                           /-----Gilbert GIFFARD, Marshal
         |                  /-----John Fitz GILBERT The Marshal
         |                 |        |         /-----Geoffrey De VENOIZ
         |                 |         \-----(Unk dau) De VENOIZ
         |         /-----Sir William MARSHALL, Protector, Earl Of Pembroke
         |        |        |                           /-----Girold DAPIFER
         |        |        |                  /-----Edward De SARESBERIE, Baron Of Trowbridge
         |        |        |                 |         \-----Wulfwynn Of Cresswell
         |        |        |         /-----Walter De SALISBURY, Baron Of Chitterne
         |        |         \-----Sibyl De SALISBURY
         |        |                 |                  /-----Hugh
         |        |                 |         /-----Patric De CHAWORTH, Baron Of Kempsford
         |        |                  \-----Sibyl De CHAWORTH
         |        |                          |                  /-----(Unk) De HESDIN
         |        |                          |         /-----Ernulph De HESDIN, Baron Of Keevil
         |        |                           \-----Matilda De HESDIN
         |        |                                    \-----Emmeline
          \-----Isabel MARSHALL
                  |                                             /-----Gilbert Count Of Brionne
                  |                                    /-----Richard FITZ GILBERT De CLARE, Baron Of Clare
                  |                           /-----Gilbert FITZ RICHARD, Baron Of Clare
                  |                          |        |         /-----Walter Giffard Lord Of Longueville
                  |                          |         \-----Rohese GIFFARD
                  |                          |                  \-----Ermengarde FLATEL
                  |                  /-----Gilbert De CLARE, Earl Of Pembroke
                  |                 |        |                  /-----Renaud Count Of Clermont
                  |                 |        |         /-----Hugh Count Of Clermont
                  |                 |        |        |         \-----Ermengardis
                  |                 |         \-----Adeliza De CLERMONT
                  |                 |                 |         /-----Hildouin III De Rameru, Count Of Montdidier And Roucy
                  |                 |                  \-----Margaret De Roucy
                  |                 |                           \-----Adele De Roucy
                  |         /-----Richard "Strongbow" De CLARE, Earl Of Pembroke
                  |        |        |                           /-----Humphrey De Vieilles
                  |        |        |                  /-----Roger De Beaumont
                  |        |        |                 |         \-----Aubreye De La Haie
                  |        |        |         /-----Sir Robert De Beaumont, Earl Of Leicester
                  |        |        |        |        |         /-----Waleran Count Of Meulan
                  |        |        |        |         \-----Adelise Of Meulan
                  |        |        |        |                  \-----Ode
                  |        |         \-----Elizabeth De BEAUMONT
                  |        |                 |                  /-----Henry I King Of France
                  |        |                 |         /-----Hugh Magnus Duke Of France
                  |        |                 |        |         \-----Anne Of Kiev
                  |        |                  \-----Isabel De Vermandois, Countess Of Leicester
                  |        |                          |         /-----Herbert IV Count Of Vermandois
                  |        |                           \-----Adelaide De Vermandois, Countess Of Vermandois
                  |        |                                    \-----Adela De Valois
                   \-----Isabel De CLARE, Countess Of Pembroke
                           |                                    /-----Diarmait MacMAEL Nam BO, King Of Hy Kinsale
                           |                           /-----Murchad Mac DAIRMAIT, King Of Laigin And Leinste
                           |                          |         \-----Darbforgaill
                           |                  /-----Donnchad Mac MURCHAD, King Of Dublin, Laigin, Lei
                           |                 |        |         /-----Muirchertach MacBRICC, King Of Dessi
                           |                 |         \-----Sadb
                           |         /-----Dairmait Mac MURCHAD, King Of Leinster
                           |        |        |         /-----Gilla Michil Ua Braenain
                           |        |         \-----Orlaith
                           |        |                 |         /-----Caernachan Hui Garbita, King Of Ui Feilmeda
                           |        |                  \-----Iuchdelb
                            \-----Aoife Macmurchada Of Leinster
                                    |                           /-----Doncuan Ua TUATHAIL
                                    |                  /-----Gillacomghall Ua TUATHAIL
                                    |                 |         \-----Sadb Ingen Mael Morda Ua Domnaill
                                    |         /-----Muirchertach Ua TUATHAIL, King Of Ui Muiredaig
                                     \-----Mor Ua TUATHAIL
                                             |                  /-----Amargein Ua MORDA, King Of Loigsi
                                             |         /-----Loigsech Ua MORDA, King Of Leix
                                             |        |         \-----Gormlaith Ingen Mac Carrach Calma
                                              \-----Cacht Of Leix
                                                      |         /-----Find Ua CAELLUIDHE
                                                       \-----Gormflaith



Descendants of Isabel De REDVERS
1. Isabel De REDVERS m. William De FORZ, Count Of Aumale
m. William De FORZ, Count Of Aumale father: William De FORZ, Count Of Aumale mother: Aveline De Montfichet