| | George Douglas, 4th Earl of Angus 1427–1463 Isabel (Elizabeth Isabel Sibbald of Balgonie Isobel Douglas Isobel Sibbald aka Carmichael) Sibbald of Balgony 1426–1497 | | | | William Douglas, 2nd Earl of Angus 1398–1437 | | | | Sir George Douglas, 1st Earl of Angus 1376–1402 Princess Mary Stewart, Lady of Galloway, Baroness of Dalkeith, Baroness Graham of Kincardine, 8th Baroness Cunningham of Kilmaurs, 1378–1457 | | | | William Douglas, 1st Earl of Douglas, 1st Earl of Douglas & Mar 1327–1384 Lady Margaret Douglas, 1st Earl of Angus …–… | | |
| | | John Stewart (Robert III, King of Scots) 1337–1406 Anabella, Queen Consort of Scotland Drummond 1350–1401 Annabella Stewart 1350–1401 | | |
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| | | John Sibbald of Balgony 1397–1451 Joan Livingstone 1405–1439 |
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