William Earl of Mar
- 1281(
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- 1 William Earl of Mar [1] d. 1281
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- 2 Donald, Earl ofMar [1.1] d. 1297
- Helen, of North Wales
- 3 Mar, Isabel of [1.1.1] d. 1297
- Robert, King of Scots I b. 11 Jul 1274 d. 7 Jun 1329
- 4 Bruce, Princess of Scotland Marjorie [1.1.1.1] d. 2 Mar 1316
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- 4 Bruce, Princess of Scotland Marjorie [1.1.1.1]
- 3 Mar, Isabel of [1.1.1]
- 2 Donald, Earl ofMar [1.1]