Genealogy of the Marshall Family,
including Medieval and Ancient Lines

Updated: 09-30-2024.

Submitted and Maintained by Bill Marshall, bill.marshall@verizon.net.

Additions and corrections appreciated (especially with sources). My current list of sources is here. Homepage here.

Index of Medieval and Ancient Lines is here, notable people here, and Gedcom available to be downloaded.

Index of Modern Lines (immigrants to America and their descendants) is here, notable people here, and Gedcom here.

Individual Page

Person Info

Name: Cecily SEYMOUR
Sex: F
Birth: Abt 1355 ^b

Parents:

Father:
Sir Roger SEYMOUR Birth: Abt 1320 Death: Before 1361

Mother:

Cecily BEAUCHAMP Birth: Abt 1321 Death: 7 Jun 1394

Family:
Marriage:

Richard CORNWALL on Before 1402 .^m1
Richard CORNWALL Birth: Abt 1360 Death: 10 Jan 1443

Children:

Richard CORNWALL
Brian CORNWALL
Matilda CORNWALL
Sir Edmund CORNWALL Birth: Abt 1382 Death: 1436 in Cologne

Bibliography

Foljambe, Cecil George Savile, Earl of Liverpool, House of Cornewall, Hereford: Jakeman, 1908. Available at http://archive.org/details/houseofcornewall00live. Information from this source tagged as [Ref: Foljambe Cornewall p[0-9]*].
Reed, Paul C, Descent of St Maur Family of co Monmouth and Seymour Family of Hatch, co Somerset, in Foundations for Medieval Genealogy, vol 2 no 6 (2008), pp390-442. Available at https://fmg.ac/publications/journal/volume-2/file/256-seymour-1. Information from this source tagged as [Ref: Reed StMAUR p[0-9]*].
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]*].

Sources for birth and parent Information

date:: abt 1355-60 [Ref: Reed StMAUR p438],
parents:: [Ref: Reed StMAUR p438]

Sources with Inaccurate birth and parent Information

father:: Sir Ralph SEYMOUR [Ref: Richardson RoyalAnc v2p310]

Sources with Information about marriage to Richard CORNWALL

date:: before 1402 [Ref: Richardson RoyalAnc v2p310],
names:: [Ref: Reed StMAUR p438],
child:: [Ref: Foljambe Cornewall p189, Richardson RoyalAnc v2p310]

Research Notes:
identified as Cecilia, dau of Sir John MERBURY of Weobley [Ref: Foljambe Cornewall p189]

Pedigree of Cecily SEYMOUR
                                     /-----William De ST MAUR
                            /-----Sir Roger De ST MAUR
                   /-----Roger De ST MAUR
          /-----William SEYMOUR
         |         \-----Joan DAMAREL
/-----Sir Roger SEYMOUR
Cecily SEYMOUR
|                                                               /-----Hugh De VAUTORT
|                                                      /-----Simon De VAUTORT
|                                             /-----Robert BEAUCHAMP, Baron Of Hatch Beauchamp
|                                            |        |         /-----Robert De BEAUCHAMP
|                                            |         \-----(Unk Dau) De BEAUCHAMP
|                                    /-----Robert BEAUCHAMP, Baron Of Hatch Beauchamp
|                                   |        |                  /-----John Fitz GILBERT The Marshal
|                                   |        |         /-----John MARSHAL
|                                   |        |        |         \-----Sibyl De SALISBURY
|                                   |         \-----Juliana MARSHAL
|                                   |                  \-----Alice De COLVILLE
|                           /-----Sir John BEAUCHAMP, Baron Of Hatch Beauchamp
|                          |        |                           /-----William De MOHUN, Baron Of Dunster
|                          |        |                  /-----Sir Reynold De MOHUN, Baron Of Dunster
|                          |        |                 |         \-----Lucy
|                          |        |         /-----Sir Reynold De MOHUN, Baron Of Dunster
|                          |        |        |        |         /-----Sir William De BRIWERE, Baron Of Horsley
|                          |        |        |         \-----Alice De BRIWERE
|                          |        |        |                  \-----Beatrice De VALLE
|                          |         \-----Alice De MOHUN
|                          |                 |                  /-----Piers De LUTEGARESHALE
|                          |                 |         /-----Geoffrey FITZ PIERS, Earl Of Essex
|                          |                 |        |         \-----Maud
|                          |                  \-----Hawise FITZ GEOFFREY
|                          |                          |         /-----Roger De CLARE, Earl Of Hertford
|                          |                           \-----Aveline De CLARE
|                          |                                    \-----Maud St. HILLARY
|                  /-----Sir John BEAUCHAMP, Lord Beauchamp Of Somerset
|                 |        |                           /-----Guillaume De FORZ, Seigneur of Vivonne
|                 |        |                  /-----Sir Hugh De VIVONNE
|                 |        |         /-----William De FORTIBUS, Lord Of Chewton
|                 |        |        |        |                  /-----Gilbert MALET, Baron Of Curry Malet
|                 |        |        |        |         /-----Sir William MALET, Baron Of Curry Malet, MC Surety
|                 |        |        |        |        |         \-----Alice PICOT
|                 |        |        |         \-----Mabel MALET
|                 |         \-----Cicely VIVONNE
|                 |                 |                           /-----William FERRERS, Earl Of Derby
|                 |                 |                  /-----William De FERRERS, Earl Of Derby
|                 |                 |                 |         \-----Sibyl De BRAOISE
|                 |                 |         /-----William De FERRERS, Earl Of Derby
|                 |                 |        |        |         /-----Hugh Of Kevelioc, Earl Of Chester
|                 |                 |        |         \-----Agnes Of Chester, Lady Of Chartley
|                 |                 |        |                  \-----Bertrade De MONTFORT
|                 |                  \-----Maud De FERRERS, Vicomtesse De Rochechouart
|                 |                          |                  /-----John Fitz GILBERT The Marshal
|                 |                          |         /-----Sir William MARSHALL, Protector, Earl Of Pembroke
|                 |                          |        |         \-----Sibyl De SALISBURY
|                 |                           \-----Sibyl MARSHALL
|                 |                                   |         /-----Richard "Strongbow" De CLARE, Earl Of Pembroke
|                 |                                    \-----Isabel De CLARE, Countess Of Pembroke
|                 |                                             \-----Aoife Macmurchada Of Leinster
|         /-----Sir John BEAUCHAMP, Lord Beauchamp Of Somerset
|        |         \-----Joan CHENDUIT
\-----Cecily BEAUCHAMP
         |                                                      /-----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
          \-----Margaret 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)

Descendants of Cecily SEYMOUR

1. Cecily SEYMOUR m. Richard CORNWALL

m. Richard CORNWALL father: Sir Geoffrey CORNWALL mother: Cecily

2 Richard CORNWALL

3 Brian CORNWALL

4+ Matilda CORNWALL m. John WALCOT

5+ Sir Edmund CORNWALL m1. Alice m2. Elizabeth BARRE m3.

2nd generation

4. Matilda CORNWALL m. John WALCOT

6+ Roger WALCOT m. Margaret

5. Sir Edmund CORNWALL m1. Alice m2. Elizabeth BARRE m3.

m. Alice

m. Elizabeth BARRE father: Sir Thomas De BARRE mother: Alice TALBOT

7+ Sir Thomas CORNWALL m. Elizabeth LENTHALL

8 Richard CORNWALL

9 Otis CORNWALL m. Katherine

10+ Eleanor CORNWALL m1. Sir Hugh MORTIMER m2. Sir Richard CROFT

3rd generation

6. Roger WALCOT m. Margaret

11 Edward WALCOT m. Alice ENGLISHE

7. Sir Thomas CORNWALL m. Elizabeth LENTHALL

m. Elizabeth LENTHALL father: Sir Roland LENTHALL mother: Lucy GREY

12 Sir Roland CORNWALL

13+ Sir Edward CORNWALL m. Margaret HOORDE

14 Giles CORNWALL

15 John CORNWALL

10. Eleanor CORNWALL m1. Sir Hugh MORTIMER m2. Sir Richard CROFT

m. Sir Hugh MORTIMER father: Sir John MORTIMER

16 Sir John MORTIMER m. Margaret NEVILLE; Margaret NEVILLE father: John De NEVILLE, K.G., Marquess of Montagu mother: Isabel INGOLDTHORPE

17+ Elizabeth MORTIMER m. Sir Thomas WEST, K.G., Lord La Warre, Lord West

m. Sir Richard CROFT father: William CROFT mother: Margaret WALWYN

18 Robert CROFT

19 Anne CROFT m. Sir Thomas BLOUNT

20 Elizabeth CROFT m. John WHITTINGTON

21 Joyce CROFT m. Thomas MILL

22 Jane CROFT m. Sir Edward DARRELL

23 Sibyl CROFT m. Sir George HERBERT; Sir George HERBERT father: William HERBERT, K.G., Earl Of Pembroke mother: Anne DEVEREUX

24 John CROFT m. Elizabeth SEYMOUR

25+ Sir Edward CROFT m. Joyce SKULLE

4th generation

13. Sir Edward CORNWALL m. Margaret HOORDE

m. Margaret HOORDE father: Thomas HOORDE

26+ Sir Thomas CORNWALL m. Anne CORBET

27+ Anne CORNWALL m. Peter BLOUNT

28 Elizabeth CORNWALL m. Thomas CRESSET

17. Elizabeth MORTIMER m. Sir Thomas WEST, K.G., Lord La Warre, Lord West

m. Sir Thomas WEST, K.G., Lord La Warre, Lord West father: Sir Richard WEST, Lord La Warre mother: Katherine HUNGERFORD

29 Sir Thomas WEST, K.G., Lord La Warre, Lord West m. Elizabeth BONVILE

30+ Eleanor WEST m. Sir Edward GUILFORD

31+ Dorothy WEST m. Sir Henry OWEN

32+ Elizabeth WEST m. Charles SOMERSET, K.G., Earl of Worcester

33 Anne WEST m. John CLINTON-FIENNES, Lord Clinton; John CLINTON-FIENNES, Lord Clinton father: John CLINTON, Lord Clinton mother: Elizabeth FIENNES

34 William WEST

35 Anthony WEST

36 Richard WEST

38 Margaret WEST

25. Sir Edward CROFT m. Joyce SKULLE

m. Joyce SKULLE father: Sir Walter SKULLE mother: Frances WINCHCOMBE

40 Joyce CROFT m. Sir Henry OWEN; Sir Henry OWEN father: Sir David OWEN mother: Mary BOHUN

41+ Elizabeth CROFT m. James VAUGHAN

42 Richard CROFT

43 Thomas CROFT

44 George CROFT

45 Eleanor CROFT m. Thomas SCRYVEN

46 Margaret CROFT m. John APRICE alias GWYNNE

47 Anne CROFT m. John HARLEY

5th generation

26. Sir Thomas CORNWALL m. Anne CORBET

m. Anne CORBET father: Sir Richard CORBET mother: Elizabeth DEVEREUX

48 Edmund CORNWALL

49+ Richard CORNWALL m. Jenet WOGAN

50 Elizabeth CORNWALL m. Arthur NEWTON

51+ Eleanor CORNWALL m. Roger VAUGHAN

27. Anne CORNWALL m. Peter BLOUNT

m. Peter BLOUNT father: John BLOUNT mother: Catherine CORBET

52+ Sir Thomas BLOUNT m1. Catherine SANDFORD m2. Joyce SHIRLEY

53+ Elizabeth BLOUNT m. George NEWPORT

30. Eleanor WEST m. Sir Edward GUILFORD

m. Sir Edward GUILFORD father: Sir Richard GUILFORD, K.G. mother: Anne PIMPE

54+ Jane GUILFORD m. John DUDLEY, K.G., Duke Of Northumberland

31. Dorothy WEST m. Sir Henry OWEN

m. Sir Henry OWEN father: Sir David OWEN mother: Mary BOHUN

56+ Elizabeth OWEN m. Nicholas DERING

57+ Mary OWEN m. John WARNET

58 Anne OWEN m. James GAGE; James GAGE father: Sir John GAGE, K.G. mother: Philippe GUILFORD

32. Elizabeth WEST m. Charles SOMERSET, K.G., Earl of Worcester

m. Charles SOMERSET, K.G., Earl of Worcester father: Henry BEAUFORT, Duke Of Somerset mother: Joan HILL

59+ Mary SOMERSET m1. Sir William De GREY, K.G., Lord Grey Of Wilton m2. Robert CARR

60 Sir Charles SOMERSET

61 Sir George SOMERSET

41. Elizabeth CROFT m. James VAUGHAN

m. James VAUGHAN father: Watkin VAUGHAN mother: Elizabeth BASKERVILLE

62 Charles VAUGHAN

63+ Isabel VAUGHAN m. George PARRY