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Marriage:
Bibliography
  1. Burke, Sir John Bernard, Genealogical and Heraldic History of the Peerage Baronetage and Knightage. 99th edition. London: Burke's Peerage, 1949. Available at http://archive.org/details/burkesgenealogic1949unse. Information from this source tagged as [Ref: Burke Peerage [cx0-9]*].
  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 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].*].
  4. Ravilious, John, Montfichet family of Cargill. Posting to soc.genealogy.medieval (email list GEN-MEDIEVAL) on 4/25/2009. Subject: the Montfichet family of Cargill & c.. Available at https://groups.google.com/g/soc.genealogy.medieval/c/ugdL0O2pAxw/m/krUmhJlENI0J. Author address: Therav3 at aol dot com. Information from this source tagged as [Ref: John Ravilious SGM 4/25/2009-131225].
  5. 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 v1[pc][0-9]*].
  6. 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]*].
  7. 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 I p[0-9]*].
  8. 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]*].
  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 V p[0-9]*].
  10. 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 VII p[0-9]*].

Sources for birth and parent Information
date:
abt 1360 [Ref: CP VIII p408],
parents:
[Ref: Burke Peerage p1332, Burke Peerage p1642, CP VIII p400f, CP VIII p408, John Ravilious SGM 4/25/2009-131225, Richardson RoyalAnc v1p626, Richardson RoyalAnc v3p151, SP III p153, SP V p586],
father:
[Ref: CP IV p432, SP I p173, SP VII p39],
half-brother:
George Earl of Angus [Ref: SP I p173, SP III p154]
Sources for death Information
date:
1408 [Ref: Burke Peerage p1332]
Aug or Sep 1408 [Ref: CP VIII p411]
abt Aug 1408 [Ref: John Ravilious SGM 4/25/2009-131225]
between May and Oct 1408 [Ref: SP III p154, SP V p587]
in or shortly before Oct 1408 [Ref: Richardson RoyalAnc v1p627]
Sources with Information about marriage to Sir Malcolm DRUMMOND
date:
before 1388 [Ref: SP III p154]
before Jul 1388 [Ref: CP VIII p409, SP V p587, SP VII p39]
first marriage of Isabel [Ref: Burke Peerage p1332, Richardson RoyalAnc v1p626],
names:
[Ref: Burke Peerage p1574, CP VIII p400f, Richardson RoyalAnc v3p151, SP I p173]
Sources with Information about marriage to Sir Alexander STEWART, Earl Of Mar
date:
[Ref: CP VIII p409]
between 9 Dec 1404 and 2 Jan 1404/5, as second marriage of Isabel [Ref: SP V p587]
first marriage of Alexander [Ref: CP VIII p412]
second marriage of Isabel [Ref: Burke Peerage p1332, SP VII p39]
shortly before 2 Jan 1404/5 [Ref: Richardson RoyalAnc v1p626],
names:
[Ref: CP VIII p400f, Richardson RoyalAnc v3p151]
Research Notes:
11th Countess of Mar, of Earldom cr c1115 [Ref: CP VIII p408]
Countess of Mar [Ref: CP IV p432]
Countess of Mar and Garloch [Ref: Richardson RoyalAnc v3p151]

1388: heiress to her brother, James, Earl of Douglas and Mar; inherited her father's unentailed estates of Cavers, jedburgh Forest, Liddesdale, the town of Selkirk, and the superiorty of Buittle and Drumlanrig [Ref: Richardson RoyalAnc v1p626]

1390: heiress to her mother; inherited the estates or earldom or Mar [Ref: Richardson RoyalAnc v1p626]

heir of her mother after death v.m. of her brother James [Ref: CP VIII p408]



Pedigree of Isabel DOUGLAS, Countess Of Mar
                                              /-----William DOUGLAS
                                     /-----Archibald DOUGLAS
                                    |        |         /-----(Unk) Of Kerdal
                                    |         \-----(Unk) Of Kerdal
                            /-----Sir William DOUGLAS
                           |        |         /-----Sir John CRAWFORD
                           |         \-----Margaret CRAWFORD
                   /-----Sir William DOUGLAS
                  |         \-----Constance
          /-----Archibald DOUGLAS, Regent Of Scotland
         |        |                                             /-----Godfrey II Count Of Louvain
         |        |                                    /-----Godfrey III Count Of Louvain
         |        |                                   |         \-----Luitgarde Of Sultzbach
         |        |                           /-----Godfrey De LOUVAINE
         |        |                          |        |         /-----Louis Count Of Loos And Rienack
         |        |                          |         \-----Imaine Of Loos
         |        |                          |                  \-----Agnes Of Metz
         |        |                  /-----Matthew De LOUVAINE, Baron Of Little Easton
         |        |                 |        |                  /-----William Fitz ROBERT, Baron Of Little Easton
         |        |                 |        |         /-----Robert De HASTINGS, Baron Of Little Easton
         |        |                 |        |        |         \-----Hawise De GUERRES
         |        |                 |         \-----Delicia (Alice) De HASTINGS
         |        |                 |                 |         /-----Roger De FLAMVILLE
         |        |                 |                  \-----Maud De FLAMVILLE
         |        |                 |                           \-----Juetta De ARCHES
         |        |         /-----Matthew De LOUVAINE, Baron Of Little Easton
         |        |        |         \-----Muriel (Amy)
         |         \-----Eleanor LOVAINE
         |                 |                                    /-----Rotrou III Count Of Perche
         |                 |                           /-----Geoffrey II Count Of Perche And Mortagne
         |                 |                          |         \-----Mahaut Of Blois
         |                 |                  /-----Thomas Count Of Perche
         |                 |                 |        |         /-----Henry V The Lion Duke Of Saxony
         |                 |                 |         \-----Maud Of Saxony
         |                 |                 |                  \-----Maud Of England
         |                 |         /-----Thomas of Perche
         |                 |        |        |                  /-----Manasses III Count Of Rethel
         |                 |        |        |         /-----Hugh II Count Of Rethel
         |                 |        |        |        |         \-----Mathilde Wildgrafin Of Kyrburg
         |                 |        |         \-----Helissende Of Rethel
         |                 |        |                 |         /-----Simon Lord Of Beauford
         |                 |        |                  \-----Felicite De Broyes
         |                 |        |                           \-----Agnes Of Joigny
         |                  \-----Helisant
         |                           \-----Catherine LESMAYE
 /-----William DOUGLAS, Earl Of Douglas
|        |                                                      /-----Walter De LINDSAY
|        |                                             /-----William De LINDSAY
|        |                                            |         \-----(Unk) ANGLICUS
|        |                                    /-----William De LINDSAY
|        |                                   |        |         /-----Gerard De LIMESY, Baron Of Cavendish
|        |                                   |         \-----Alice De LIMESY
|        |                                   |                  \-----Amicia De BIDUN
|        |                           /-----Sir David De LINDSAY
|        |                  /-----Sir David De LINDSAY
|        |         /-----Sir Alexander LINDSAY
|        |        |        |                                    /-----William De LINDSAY
|        |        |        |                           /-----Walter De LINDSAY
|        |        |        |                  /-----William De LINDSAY
|        |        |        |         /-----Walter De LINDSAY
|        |        |        |        |        |                  /-----Roger FITZREINFRID
|        |        |        |        |        |         /-----Gilbert FITZROGER FITZREINFRID, Lord Of Kendal
|        |        |        |        |        |        |         \-----Alice
|        |        |        |        |         \-----Alice De LANCASTER, Baroness Of Kendal
|        |        |        |        |                 |         /-----William II De LANCASTER, Baron Of Kendal
|        |        |        |        |                  \-----Helwise De LANCASTER, Baroness Of Kendal
|        |        |        |        |                           \-----Helwise De STUTEVILLE
|        |        |         \-----Margaret De LINDSAY
|        |        |                  \-----Christian
|         \-----Beatrice LINDSAY
|                  \-----(Unk) STEWART
|                          |                                    /-----Walter FITZALAN, High Steward Of Scotland
|                          |                           /-----Alan High Steward Of Scotland
|                          |                          |         \-----Sechym De MOILE
|                          |                  /-----Walter Stewart, High Steward Of Scotland
|                          |                 |        |         /-----Swan
|                          |                 |         \-----Eva
|                          |         /-----Alexander STEWART, High Steward Of Scotland
|                          |        |        |                  /-----Gilbride Earl Of Angus
|                          |        |        |         /-----Gilchrist Earl Of Angus
|                          |        |        |        |         \-----(Unk Dau) Of Dunbar
|                          |        |         \-----Beatrix Of Angus
|                           \-----(Unk) STEWART
|                                   |                           /-----(Unk) De COMYN
|                                   |                  /-----Richard COMYN
|                                   |         /-----William COMYN, Earl Of Buchan
|                                   |        |        |         /-----Uchtred Of Tynedale
|                                   |        |         \-----Hextilde of Tynedale
|                                   |        |                  \-----Bethoc Of Scotland
|                                    \-----Joanna
|                                            |                  /-----Roger Earl Of Buchan
|                                            |         /-----Fergus Earl Of Buchan
|                                             \-----Margaret Countess Of Buchan
Isabel DOUGLAS, Countess Of Mar
|                                                               /-----Gyloclery
|                                                      /-----Morgrund Mac GYLOCHER, Earl Of Mar
|                                             /-----Duncan Earl Of Mar
|                                            |         \-----Agnes
|                                    /-----William Earl Of Mar
|                           /-----Sir Donald Earl Of Mar
|                          |        |                           /-----(Unk) De COMYN
|                          |        |                  /-----Richard COMYN
|                          |        |         /-----William COMYN, Earl Of Buchan
|                          |        |        |        |         /-----Uchtred Of Tynedale
|                          |        |        |         \-----Hextilde of Tynedale
|                          |        |        |                  \-----Bethoc Of Scotland
|                          |         \-----Elizabeth COMYN
|                          |                 |                  /-----Roger Earl Of Buchan
|                          |                 |         /-----Fergus Earl Of Buchan
|                          |                  \-----Margaret Countess Of Buchan
|                  /-----Gratney Earl Of Mar
|                 |         \-----Helen
|         /-----Donald Earl Of Mar
|        |        |                                             /-----Robert De BRUS, Lord Of Annandale
|        |        |                                    /-----William De BRUS, Lord Of Annandale
|        |        |                                   |         \-----Euphemia
|        |        |                           /-----Robert De BRUS, Lord Of Annandale
|        |        |                          |        |         /-----Walter FITZALAN, High Steward Of Scotland
|        |        |                          |         \-----Christina
|        |        |                          |                  \-----Sechym De MOILE
|        |        |                  /-----Sir Robert De BRUS, Baron Of Writtle
|        |        |                 |        |                  /-----Henry Of Huntingdon, Earl Of Huntingdon
|        |        |                 |        |         /-----David Earl Of Huntingdon
|        |        |                 |        |        |         \-----Ada De WARENNE
|        |        |                 |         \-----Isabella Of Huntingdon
|        |        |                 |                 |         /-----Hugh Of Kevelioc, Earl Of Chester
|        |        |                 |                  \-----Maud Of Chester
|        |        |                 |                           \-----Bertrade De MONTFORT
|        |        |         /-----Sir Robert De BRUS, Earl Of Carrick, Lord Of Annand
|        |        |        |        |                           /-----Roger De CLARE, Earl Of Hertford
|        |        |        |        |                  /-----Richard De CLARE, Earl Of Hertford, MC Surety
|        |        |        |        |                 |         \-----Maud St. HILLARY
|        |        |        |        |         /-----Sir Gilbert De CLARE, Earl Of Hertford And Glouceste
|        |        |        |        |        |        |         /-----William Meullant FITZ ROBERT, Earl Of Gloucester
|        |        |        |        |        |         \-----Amice MEULANT, Countess Of Gloucester
|        |        |        |        |        |                  \-----Hawise DeBEAUMONT
|        |        |        |         \-----Isabel De CLARE
|        |        |        |                 |                  /-----John Fitz GILBERT The Marshal
|        |        |        |                 |         /-----Sir William MARSHALL, Protector, Earl Of Pembroke
|        |        |        |                 |        |         \-----Sibyl De SALISBURY
|        |        |        |                  \-----Isabel MARSHALL
|        |        |        |                          |         /-----Richard "Strongbow" De CLARE, Earl Of Pembroke
|        |        |        |                           \-----Isabel De CLARE, Countess Of Pembroke
|        |        |        |                                    \-----Aoife Macmurchada Of Leinster
|        |         \-----Christian BRUCE
|        |                 |                                    /-----Gilbert Of Galloway
|        |                 |                           /-----Duncan Earl Of Carrick
|        |                 |                          |         \-----Aufrica
|        |                 |                  /-----Nicol Of Carrick
|        |                 |                 |        |         /-----Alan High Steward Of Scotland
|        |                 |                 |         \-----Avelina Of Scotland
|        |                 |                 |                  \-----Eva
|        |                 |         /-----Neil Earl Of Carrick, Regent Of Scotland
|        |                 |        |        |         /-----Niall Ruadh O'NEILL
|        |                 |        |         \-----(Unk) O'NEILL
|        |                  \-----Margaret Of Carrick, Countess Of Carrick
|        |                           \-----Isabella
 \-----Margaret Countess Of Mar
         |                                                      /-----Walter FITZALAN, High Steward Of Scotland
         |                                             /-----Alan High Steward Of Scotland
         |                                            |         \-----Sechym De MOILE
         |                                    /-----Walter Stewart, High Steward Of Scotland
         |                                   |        |         /-----Swan
         |                                   |         \-----Eva
         |                           /-----Alexander STEWART, High Steward Of Scotland
         |                          |        |                  /-----Gilbride Earl Of Angus
         |                          |        |         /-----Gilchrist Earl Of Angus
         |                          |        |        |         \-----(Unk Dau) Of Dunbar
         |                          |         \-----Beatrix Of Angus
         |                  /-----Sir John STEWART
         |                 |        |                           /-----(Unk) De COMYN
         |                 |        |                  /-----Richard COMYN
         |                 |        |         /-----William COMYN, Earl Of Buchan
         |                 |        |        |        |         /-----Uchtred Of Tynedale
         |                 |        |        |         \-----Hextilde of Tynedale
         |                 |        |        |                  \-----Bethoc Of Scotland
         |                 |         \-----Joanna
         |                 |                 |                  /-----Roger Earl Of Buchan
         |                 |                 |         /-----Fergus Earl Of Buchan
         |                 |                  \-----Margaret Countess Of Buchan
         |         /-----Sir Alexander STEWART
         |        |        |                                    /-----Sir Ranulf De BONKYL
         |        |        |                           /-----Alexander De BONKYL
         |        |        |                  /-----Adam De Bonkyl
         |        |        |         /-----Alexander De Bonkyl
         |        |        |        |        |                  /-----William COMYN, Earl Of Buchan
         |        |        |        |        |         /-----Richard COMYN
         |        |        |        |        |        |         \-----(Unk)
         |        |        |        |         \-----(Unk) COMYN
         |        |         \-----Margaret De Bonkyl
         |        |                 |                           /-----Patrick DUNBAR, Earl Of Dunbar
         |        |                 |                  /-----Sir Parick DUNBAR, Earl Of Dunbar
         |        |                 |                 |         \-----Ada
         |        |                 |         /-----Patrick DUNBAR, Earl Of Dunbar
         |        |                 |        |        |         /-----William De BRUS, Lord Of Annandale
         |        |                 |        |         \-----Euphemia
         |        |                 |        |                  \-----Christina
         |        |                  \-----Christiana DUNBAR
         |        |                          |                  /-----Robert FITZ ROGER, Baron Of Whalton
         |        |                          |         /-----John FITZ ROBERT, MC Surety
         |        |                          |        |         \-----Margery De CHESNEY, Lady Of Horsford
         |        |                           \-----Cecilia
         |        |                                   |         /-----Hugh De BALIOL, Baron Of Bywell
         |        |                                    \-----Ada De BALIOL
         |        |                                             \-----Cicely De FONTAINES
          \-----Isabel STEWART
                  |                                             /-----Ivo FITZ FORNE, Baron Of Greystoke
                  |                                    /-----Walter FITZ IVO, Baron Of Greystoke
                  |                                   |         \-----Agnes
                  |                           /-----Randolf FITZWALTER, Baron Of Greystoke
                  |                          |         \-----Beatrice De FOLKTON
                  |                  /-----Thomas FITZ RANULF
                  |                 |         \-----Amabel
                  |         /-----Sir Thomas RANDOLPH
                  |        |        |                           /-----Odard Sheriff Of Northumberland
                  |        |        |                  /-----William Fitz ODARD, Baron Of Embleton
                  |        |        |                 |         \-----Anna
                  |        |        |         /-----Robert Fitz WILLIAM
                  |        |        |        |        |         /-----Alexander De WYNDESORE
                  |        |        |        |         \-----Oseanna De WYNDESORE
                  |        |        |        |                  \-----Agnes De LANCASTER
                  |        |         \-----Juliana
                  |        |                  \-----Alice De LASCELLES
                   \-----(Unk) RANDOLPH
                           |         /-----Adam De KILCONQUHAR
                            \-----Isabella De KILCONQUHAR
                                    |                           /-----Duncan Earl Of Carrick
                                    |                  /-----Nicol Of Carrick
                                    |                 |         \-----Avelina Of Scotland
                                    |         /-----Neil Earl Of Carrick, Regent Of Scotland
                                    |        |        |         /-----Niall Ruadh O'NEILL
                                    |        |         \-----(Unk) O'NEILL
                                     \-----Margaret Of Carrick, Countess Of Carrick
                                              \-----Isabella



Descendants of Isabel DOUGLAS, Countess Of Mar
1. Isabel DOUGLAS, Countess Of Mar m1. Sir Malcolm DRUMMOND m2. Sir Alexander STEWART, Earl Of Mar
m. Sir Malcolm DRUMMOND father: Sir John DRUMMOND mother: Mary De MONTIFICHET
m. Sir Alexander STEWART, Earl Of Mar father: Alexander STEWART, Earl Of Buchan