1.Elisabeth Sinclair married John Drummond, daughter of:
2.Henry Sinclair 1st Earl of Orkney (abt 1345 - abt 1440) and Janet (or Jean) Halyburton
3. Henry Sinclair son of William Sinclair (abt 1328 - abt 1358) and Isabella of Orkney and of Strathearn
4. William Sinclair son of William Sinclair and Rosabelle
Isabella daughter of Malisse (II or Iv ? ) 8 Earl (abt 1287 - abt 1348) and Marjorie of Ross (abt 1309 - abt 1350)
Marjorie of Ross daughter of Hugh and Maud (or Matilda) Bruce daughter of Robert VII, Bruce and Margareth (or Margery) countess of Carrick (abt 1282 - abt 1323)
5. William Sinclair son of Henry Sinclair and Alicia of Fenton
6. Henry Sinclair son of William Sinclair( abt 1280- abt 1385) and Matilda of Orkney
7. Henry Sinclair and Margareth of Mar
Fonte: