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: Isabel De ROS
Sex: F
Birth: Abt 1295 ^b

Parents:

Father:
Sir Robert De ROS, Lord Ros Of Wark Birth: Abt 1272 in Wark, Northumberland Death: Abt 1296

Mother:

Laura

Family:
Marriage:

John KNOCKES on 1 .^m1
John KNOCKES

Marriage:

William De CRICHTON on 2 .^m2
William De CRICHTON Birth: 4

Children:

Edward De CRICHTON Death: After 1412

Bibliography

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].*].
Ravilious, John, Sanquhar and Ros of Wark. Posting to soc.genealogy.medieval (email list GEN-MEDIEVAL) on 9/16/2003. Subject: CP ' Expansion ' : Sanquhar, co. Dumfries and de Ros of Wark. Available at https://groups.google.com/g/soc.genealogy.medieval/c/tPGnnBqCV5c/m/0huk2Y9cS-gJ. Author address: Therav3 at aol dot com. Information from this source tagged as [Ref: John Ravilious SGM 9/16/2003-220001].
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]*].
Paul, Sir James Balfour, Scots Peerage: founded on Wood's edition of Sir Robert Douglas's peerage of Scotland; containing an historical and genealogical account of the nobility of that Kingdom. Edinburgh: David Douglas, 1904. NYPL ARO (Scots Peerage) (too fragile to copy). Available at https://familysearch.org/search/catalog/216265. Information from this source tagged as [Ref: SP III p[0-9]*].
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:: abt 1295 [Ref: John Ravilious SGM 9/16/2003-220001]; age 12 in 1307 [Ref: CP XI p122(a)],
parents:: [Ref: CP XI p122(a), John Ravilious SGM 9/16/2003-220001, Richardson RoyalAnc v4p303],
father:: [Ref: Sanders Baronies p149(7)],
sister:: wife of Richard EDGAR [Ref: SP III p219]

Sources with Information about marriage to John KNOCKES

date:: first marriage of Isabel [Ref: John Ravilious SGM 9/16/2003-220001],
names:: [Ref: CP XI p122(a), Richardson RoyalAnc v4p303, Sanders Baronies p149(7)]

Sources with Information about marriage to William De CRICHTON

date:: second marriage of Isabel, after 1307 [Ref: John Ravilious SGM 9/16/2003-220001],
names:: [Ref: Richardson RoyalAnc v4p303, SP III p219],
child:: [Ref: SP III p220]

Research Notes:
given permission to have seizin of Wark, but the royal commands were not obeyed [Ref: Sanders Baronies p149(7)]

heiress of half of the barony of Sanquhar [Ref: SP III p219]

Sanquhar was part of the maritagium of Isabel, illegitimate daughter of William the Lion [Ref: John Ravilious SGM 9/16/2003-220001]

Pedigree of Isabel De ROS
                                                       /-----Peter De ROS
                                              /-----Robert De ROS, Baron Of Helmsley
                                             |        |         /-----William ESPEC, Baron Of Old Wardon
                                             |         \-----Adeline ESPEC
                                     /-----Everhard De ROS, Baron Of Helmsley
                                    |        |         /-----Thebaud De VALOGNES
                                    |         \-----Sibyl De VALOGNES
                            /-----Robert De ROS, Magna Charta Surety
                           |        |                  /-----William TRUSSEBUT
                           |        |         /-----William TRUSSEBUT, Baron Of Hunsingore
                           |        |        |        |         /-----Payne
                           |        |        |         \-----(Unk) FITZ PAYNE
                           |         \-----Roysia TRUSSEBUT
                           |                 |         /-----Rollo De HARCOURT
                           |                  \-----Audrey De HARCOURT
                           |                          |         /-----Robert PEVEREL
                           |                           \-----Rohese PEVEREL
                           |                                    \-----Adelicia
                   /-----Sir Robert De ROS, Baron Of Wark
                  |        |                                    /-----Mael Coluim Ceann Moir (Malcolm III) Canmore Mac DONNCHAD, King Of Scots
                  |        |                           /-----David I The Saint King Of Scots
                  |        |                          |         \-----Saint Margaret Of Scotland
                  |        |                  /-----Henry Of Huntingdon, Earl Of Huntingdon
                  |        |                 |        |         /-----Waltheof II Earl Of Huntingdon
                  |        |                 |         \-----Maud Of Huntingdon
                  |        |                 |                  \-----Judith Of Lens
                  |        |         /-----William The Lion King Of Scots
                  |        |        |        |                  /-----William De Warrene, Earl Of Surrey
                  |        |        |        |         /-----William II De Warrene, Earl Of Surrey
                  |        |        |        |        |         \-----Gundred
                  |        |        |         \-----Ada De WARENNE
                  |        |        |                 |         /-----Hugh Magnus Duke Of France
                  |        |        |                  \-----Isabel De Vermandois, Countess Of Leicester
                  |        |        |                           \-----Adelaide De Vermandois, Countess Of Vermandois
                  |         \-----Isabel Of Scotland
                  |                 |         /-----Robert AVENAL
                  |                  \-----Isabel AVERNAL
                  |                           \-----Sibyl
          /-----Sir Robert De ROS, Baron Of Wark
/-----Sir Robert De ROS, Lord Ros Of Wark
|        |                                                      /-----Adam De BRUS
|        |                                             /-----Robert De BRUS, Baron Of Skelton
|        |                                            |         \-----Emma
|        |                                    /-----Adam De BRUS, Baron Of Skelton
|        |                                   |        |         /-----Fulk PAYNEL
|        |                                   |         \-----Agnes PAYNEL
|        |                                   |                  \-----Beatrix
|        |                           /-----Adam II De BRUS, Baron Of Skelton
|        |                          |        |                  /-----Eudes Count Of Champagne, Lord Of Holderness
|        |                          |        |         /-----Stephen Of Aumale, Lord Of Holderness
|        |                          |        |        |         \-----Adelaide Of Normandy
|        |                          |         \-----Agnes Of Aumale
|        |                          |                 |         /-----Ralph De MORTIMER, Baron Of Wigmore
|        |                          |                  \-----Hawise De MORTIMER
|        |                          |                           \-----Milicent
|        |                  /-----Peter I De BRUS, Baron Of Skelton
|        |                 |        |                           /-----(Unk)
|        |                 |        |                  /-----Osbert De ARCHES
|        |                 |        |         /-----William De ARCHES
|        |                 |        |        |         \-----Maud
|        |                 |         \-----Juetta De ARCHES
|        |                 |                  \-----Jueta
|        |         /-----Peter II De BRUS, Baron Of Skelton
|        |        |        |                                    /-----John FITZRICHARD
|        |        |        |                           /-----Eustace Fitz John De BURGO, Constable Of Chester
|        |        |        |                  /-----Richard FITZ EUSTACE, Constable Of Chester
|        |        |        |                 |        |         /-----William FITZ NIGEL, Constable Of Chester
|        |        |        |                 |         \-----Agnes De HALTON
|        |        |        |                 |                  \-----Adeliz Of Widness
|        |        |        |         /-----John Fitz Richard, Constable Of Chester
|        |        |        |        |        |                  /-----Fulk De LISOURS
|        |        |        |        |        |         /-----Robert LIZOURS
|        |        |        |        |        |        |         \-----Aubrey
|        |        |        |        |         \-----Albreada LIZOURS, Baroness Of Pontfract
|        |        |        |        |                 |         /-----Robert De LACY, Baron Of Pontefract
|        |        |        |        |                  \-----Aubrey De LACY
|        |        |        |        |                           \-----Maud
|        |        |         \-----Joan De Chester
|        |        |                 |                           /-----(Unk) De CANTELOWE
|        |        |                 |                  /-----Richard
|        |        |                 |         /-----Roger FITZ RICHARD, Baron Of Warkworth
|        |        |                 |        |        |         /-----Roger BIGOD, Baron Of Framlingham
|        |        |                 |        |         \-----Jane BIGOD
|        |        |                 |        |                  \-----Alice De TOENI
|        |        |                  \-----Alice Fitz Roger
|        |        |                          |                  /-----Alberic De VERE, Baron Of Hedingham
|        |        |                          |         /-----Alberic II De VERE, Baron Of Hedingham
|        |        |                          |        |         \-----Beatrix
|        |        |                           \-----Alice De VERE
|        |        |                                   |         /-----Gilbert FITZ RICHARD, Baron Of Clare
|        |        |                                    \-----Adeliza De CLARE
|        |        |                                             \-----Adeliza De CLERMONT
|         \-----Margaret De BRUS
|                 |                           /-----Reinfrid
|                 |                  /-----Roger FITZREINFRID
|                 |                 |         \-----Gonilla
|                 |         /-----Gilbert FITZROGER FITZREINFRID, Lord Of Kendal
|                 |        |        |                  /-----(Unk) FOLIOT
|                 |        |        |         /-----Robert FOLIOT
|                 |        |        |        |         \-----(Unk)
|                 |        |         \-----Alice
|                 |        |                  \-----Margaret
|                  \-----Hawise De LANCASTER
|                          |                           /-----Gilbert De LANCASTER, Baron Of Kendal
|                          |                  /-----William I De LANCASTER, Baron Of Kendal
|                          |                 |        |         /-----Ethred Baron Of Kendal
|                          |                 |         \-----Goditha
|                          |                 |                  \-----Beatrice
|                          |         /-----William II De LANCASTER, Baron Of Kendal
|                           \-----Helwise De LANCASTER, Baroness Of Kendal
|                                   |                           /-----Robert De Estouteville
|                                   |                  /-----Robert De Estouteville
|                                   |                 |         \-----Beatrix
|                                   |         /-----Robert De STUTEVILLE, Baron Of Cottingham
|                                   |        |         \-----Erneburga
|                                    \-----Helwise De STUTEVILLE
|                                             \-----Helwise
Isabel De ROS
\-----Laura

Descendants of Isabel De ROS

1. Isabel De ROS m1. John KNOCKES m2. William De CRICHTON

m. John KNOCKES

m. William De CRICHTON father: Alexander De CRICHTON

2+ Edward De CRICHTON m.

2nd generation

2. Edward De CRICHTON m.

3+ Sir Robert CRICHTON m. Elizabeth ERSKINE

3rd generation

3. Sir Robert CRICHTON m. Elizabeth ERSKINE

m. Elizabeth ERSKINE father: Sir William ERSKINE

4+ Christian CRICHTON m1. Sir Robert COLVILLE m2. Alexander ERSKINE, Lord Erskine

5+ Margaret CRICHTON m. Sir David HERRIES

6+ Sir Robert CRICHTON, Lord Crichton Of Sanquhar m1. Margaret HAY m2. Christian ERSKINE

7+ Elizabeth CRICHTON m1. William DOUGLAS m2. James CAMPBELL m3. Sir William COLVILLE

8 Alexander CRICHTON

9+ Laurence CRICHTON m.

10 Thomas CRICHTON

11 Patrick CRICHTON

12+ Edward CRICHTON m.

13 George CRICHTON

4th generation

4. Christian CRICHTON m1. Sir Robert COLVILLE m2. Alexander ERSKINE, Lord Erskine

m. Sir Robert COLVILLE father: Robert COLVILLE mother: Margaret COLVILLE

14+ Sir Robert COLVILLE m. Eupheme WALLACE

m. Alexander ERSKINE, Lord Erskine father: Thomas ERSKINE, Lord Erskine mother: Janet DOUGLAS

15+ Christian ERSKINE m. David STEWART

16+ Agnes ERSKINE m. William MENTEITH

17+ Robert ERSKINE, Lord Erskine m. Isabel CAMPBELL

18 Walter ERSKINE

5. Margaret CRICHTON m. Sir David HERRIES

m. Sir David HERRIES father: John HERRIES

19+ Herbert HERRIES, Lord Herries Of Terregles m1. Mariota CARLYLE m2. Mariot CUNNINGHAM

6. Sir Robert CRICHTON, Lord Crichton Of Sanquhar m1. Margaret HAY m2. Christian ERSKINE

m. Margaret HAY

20+ Robert CRICHTON m. Marion STEWART

21 Mariota CRICHTON m. Malcolm CRAWFORD

22 Margaret CRAWFORD m. Alexander HOME

m. Christian ERSKINE father: Sir John ERSKINE

7. Elizabeth CRICHTON m1. William DOUGLAS m2. James CAMPBELL m3. Sir William COLVILLE

m. William DOUGLAS father: Sir William DOUGLAS mother: Janet De MAXWELL

23+ Sir James DOUGLAS m. Janet SCOTT

24 Archibald DOUGLAS

25 Robert DOUGLAS

26 John DOUGLAS

27 Hugh DOUGLAS

28+ Margaret DOUGLAS m. John CATHCART, Lord Cathcart

29+ Janet DOUGLAS m1. William SOMERVILLE, Master Of Somerville m2. Sir Alexander GORDON

30 Elizabeth DOUGLAS m. John CAMPBELL

m. James CAMPBELL

m. Sir William COLVILLE father: Sir Robert COLVILLE mother: Eupheme WALLACE

9. Laurence CRICHTON m.

31+ John CRICHTON m. Katherine ROSS

12. Edward CRICHTON m.

32+ Robert CRICHTON m.

5th generation

14. Sir Robert COLVILLE m. Eupheme WALLACE

m. Eupheme WALLACE

33+ Janet COLVILLE m. Alexander BOYD, Lord Boyd

34+ Margaret COLVILLE m. Sir John SEMPILL, Lord Sempill

35+ Sir William COLVILLE m1. Elizabeth KENNEDY m2. Elizabeth CRICHTON m3. Margaret KER

36 David COLVILLE

37 Philip COLVILLE

38 James COLVILLE

15. Christian ERSKINE m. David STEWART

m. David STEWART

39+ Christian STEWART m. John BETHUNE

16. Agnes ERSKINE m. William MENTEITH

m. William MENTEITH father: William MENTEITH

40+ Sir William MENTEITH m. Helen BRUCE

17. Robert ERSKINE, Lord Erskine m. Isabel CAMPBELL

m. Isabel CAMPBELL father: George CAMPBELL mother: (Unk) KENNEDY

41 Robert ERSKINE, Master Of Erskine

42+ John ERSKINE, Lord Erskine m. Margaret CAMPBELL

43+ James ERSKINE m. Christine STIRLING

44 Alexander ERSKINE

45 William ERSKINE

46+ Margaret ERSKINE m1. Robert DOUGLAS m2. James V King Of Scots m3. James HALDANE

47 Janet ERSKINE

48 Christian ERSKINE m. Sir John COLQUHOUN; Sir John COLQUHOUN father: Humphrey COLQUHOUN mother: Helen GRAHAM

19. Herbert HERRIES, Lord Herries Of Terregles m1. Mariota CARLYLE m2. Mariot CUNNINGHAM

m. Mariota CARLYLE father: Sir John CARLYLE, Lord Carlyle mother: Janet

49+ Andrew HERRIES, Lord Herries Of Terregles m1. Beatrix HERRIES m2. Janet DOUGLAS m3. Nichola HOME

50 Mungo HERRIES

51 John HERRIES

52 Roger HERRIES

53 (Unk Dau) HERRIES m. Sir John MacFARLANE

m. Mariot CUNNINGHAM

20. Robert CRICHTON m. Marion STEWART

m. Marion STEWART father: John STEWART, Earl Of Lennox mother: Margaret MONTGOMERIE

54 (Unk Dau) CRICHTON m. Sir James DUNBAR

55 Margaret CRICHTON m. Patrick CRICHTON

56 (Unk Dau) CRICHTON m. Thomas KILPATRICK

57+ Robert CRICHTON, Lord Crichton Of Sanquhar m. Marion MAXWELL

23. Sir James DOUGLAS m. Janet SCOTT

m. Janet SCOTT father: David SCOTT

58 Janet DOUGLAS m. Roger GRIERSON

59+ Sir William DOUGLAS m. Elizabeth GORDON

60 Gavin DOUGLAS

61 James DOUGLAS

28. Margaret DOUGLAS m. John CATHCART, Lord Cathcart

m. John CATHCART, Lord Cathcart father: Alan CATHCART, Master Of Cathcart

62 Jonet CATHCART m. John CRAWFORD

63 Sibella CATHCART m. John WALLACE

64 Jean CATHCART m. John SHAW

65 Margaret CATHCART m. John HUNTER

66 Robert CATHCART m. Margaret CATHCART; Margaret CATHCART father: Alan CATHCART

67 John CATHCART m. Sibyll CATHCART

68 David CATHCART m. Agnes CRAWFORD

69 Hugh CATHCART m. Egidia CRAWFORD

29. Janet DOUGLAS m1. William SOMERVILLE, Master Of Somerville m2. Sir Alexander GORDON

m. William SOMERVILLE, Master Of Somerville father: John SOMERVILLE, Lord Somerville mother: Helen HEPBURN

70 John SOMERVILLE, Lord Somerville m. Agnes COLQUHOUN

71+ Hugh SOMERVILLE, Lord Somerville m1. Anna HAMILTON m2. Janet MAITLAND

72 Mary SOMERVILLE m. James LOCKHART

m. Sir Alexander GORDON father: Sir John GORDON mother: Annabella BOYD

31. John CRICHTON m. Katherine ROSS

m. Katherine ROSS

73 Margaret CRICHTON m. Andrew STEWART

32. Robert CRICHTON m.

74+ Robert CRICHTON m.