Lady de Mar Margaret Gartney De St Clair
1300 - Yes, date unknown(
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- 1 Lady de Mar Margaret Gartney De St Clair [1] b. 1300 d. Yes, date unknown
- William St Clair Of Hermaston b. 1297 d. 1330
- 2 John Saint Clair [1.1] b. 1323 d. 1377
- Margaret Sinclair b. 1330 d. 1361
- 3 John De St. Claire, II [1.1.1] b. 1356 d. 9 May 1429
- Elizabeth Polwarth b. Between 1345 and 1356 d. 20 Jun 1449
- 4 Katherine De St. Claire [1.1.1.1] b. 1375 d. 28 Mar 1450
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- 4 Second Laird Of Polwerth John De St. Clair [1.1.1.2] b. 1397 d. 20 Dec 1466
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- 4 Katherine De St. Claire [1.1.1.1]
- 3 John De St. Claire, II [1.1.1]
- 2 John Saint Clair [1.1]