Individual Page

Person Info

Name: William De St CLAIR
Sex: M

Parents:

Father:
John De St CLAIR Death: After 1314

Family:
Children:

Sir John SINCLAIR Death: Before 1353

Bibliography

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

father:: [Ref: SP VII p578]

Sources with Information about marriage to unknown

child:: [Ref: SP VII p578]

Research Notes:
of Herdmanston [Ref: SP VII p578]

had a safe-conduct til Pentecost 1307 from King Edward I [Ref: SP VII p578]

companion of King Robert Bruce [Ref: SP VII p578]

Pedigree of William De St CLAIR
                            /-----Henry De St CLAIR
                   /-----Alan De St CLAIR
          /-----John De St CLAIR
         |        |                                             /-----Otterus Baron Of Gherardini Of Florence
         |        |                                    /-----Otho GERALDINO, Baron Of Windsor
         |        |                           /-----Walter FITZ OTHO, Baron Of Eton
         |        |                  /-----William FITZ WALTER, Baron Of Eton
         |        |                 |         \-----Beatrice
         |        |         /-----Alexander De WYNDESORE
         |        |        |         \-----Anna
         |         \-----Matilda De WYNDESORE
         |                 |                  /-----Gilbert De LANCASTER, Baron Of Kendal
         |                 |         /-----William I De LANCASTER, Baron Of Kendal
         |                 |        |        |         /-----Ethred Baron Of Kendal
         |                 |        |         \-----Goditha
         |                 |        |                 |         /-----Ivo TAILEBOIS
         |                 |        |                  \-----Beatrice
         |                 |        |                           \-----(Unk)
         |                  \-----Agnes De LANCASTER
         |                          |                           /-----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
         |                           \-----Gundred De WARENNE, Countess Of Warwick
         |                                   |                  /-----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
/-----John De St CLAIR
William De St CLAIR

Descendants of William De St CLAIR

1. William De St CLAIR m.

2+ Sir John SINCLAIR m. Margaret SINCLAIR

2nd generation

2. Sir John SINCLAIR m. Margaret SINCLAIR

m. Margaret SINCLAIR father: Sir William SINCLAIR

3+ Sir John SINCLAIR m. Elizabeth POLWARCH

4 James SINCLAIR

5 Walter SINCLAIR

3rd generation

3. Sir John SINCLAIR m. Elizabeth POLWARCH

m. Elizabeth POLWARCH father: Sir Patrick POLWARTH

6+ Katherine De St CLAIR m. Sir John SETON, Lord Of Seton