Margaret De Quincy
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- 1 Margaret De Quincy [1]
- Earl of Lincoln John De Lacy d. 1240
- 2 Maude De Lacy [1.1] d. 1289
- Earl of Gloucester Richard De Clare b. 4 Aug 1222 d. 15 Jul 1262
- 3 Sir Gilbert De Clare [1.1.1] b. 2 Sep 1243 d. 7 Dec 1295
- Joan Plantagenet b. Abt Apr 1272 d. 23 Apr 1307
- 4 Margaret De Clare [1.1.1.1] b. 1292 d. 1342
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- 4 Elizabeth De Clare [1.1.1.2] b. 16 Sep 1295 d. 4 Nov 1360
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- 4 Margaret De Clare [1.1.1.1]
- 3 Lord of Thomond Thomas De Clare [1.1.2] b. 1245 d. Yes, date unknown
- Juliane De Windsor d. 1300
- 4 Margaret De Clare [1.1.2.1] d. 1333
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- 4 Margaret De Clare [1.1.2.1]
- 3 Sir Gilbert De Clare [1.1.1]
- 2 Maude De Lacy [1.1]