MARMION, 1st Baron Marmion of Tanfield 1st Baron Marmion John
Bef 1257 - Bef 1322 (< 65 years)
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- 1 MARMION, 1st Baron Marmion of Tanfield 1st Baron Marmion John [1] b. Bef 1257 d. Bef 7 May 1322
- ISABEL b. Abt 1266 d. 15 Jan 1337
- 2 MARMION, Sir, 2nd Baron Marmion of Tanfield John [1.1] b. Abt 1292 d. 30 Apr 1335
- DE FURNIVAL, Maud b. 1293 d. 20 Feb 1361
- 3 MARMION, Avice [1.1.1] b. 1309 d. 20 Mar 1378
- DE GREY, 1st Baron Grey of Rotherford John b. 9 Oct 1300 d. 1 Sep 1359
- 4 GREY, Robert [1.1.1.1] b. 1345 d. 1367
- 4 GREY, Alice [1.1.1.2] b. 1346 d. 1367
- 4 DEGREY, John [1.1.1.3] b. 1343 d. 25 Oct 1369
- 4 DE GREY, Joan [1.1.1.4] b. 1349
- 4 DE GREY, Maud [1.1.1.5] b. 1347 d. 30 Jan 1391
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- 4 GREY, Robert [1.1.1.1]
- 3 MARMION, Joan [1.1.2] b. 1313 d. 14 Oct 1361
- BERNACKE, Sir John b. 1309 d. 21 Mar 1346
- 4 BERNACKE, Maud [1.1.2.1] b. 7 Mar 1337 d. 10 Apr 1419
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- 4 BERNAKE, Sir Knight William [1.1.2.2] b. 1330 d. 18 Dec 1360
- 4 BERNACKE, Maud [1.1.2.1]
- 3 MARMION, Avice [1.1.1]
- 2 MARMION, Sir, 2nd Baron Marmion of Tanfield John [1.1]