| Generation 2 - Baron William Fitzmartin, II of Blagdon Cemise and Dartington: Born - 1160 - Blagdon, Somerset |
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| Generation 2 - Baron William Fitzmartin, II of Blagdon Cemise and Dartington: Died - 1215 - Galway, Ireland |
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| Generation 3 - Baron William Fitzmartin, I of Cemais & Lady Angharad Verch Rhys, Princess of South Wales: Married - 1159 - Dartington, Devon |
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| Generation 4 - Baron Robert Fitzmartin, I of Blagdon: Died - 1159 - Barnstaple, Devon |
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| Generation 4 - Baroness Alice De Nonant: Born - 1100 - Broad Clyst, Devon |
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| Generation 4 - Baroness Alice De Nonant: Died - 1175 - Totnes, Devon |
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| Generation 5 - Baron Martin De Tours of Cemais: Died - 1086 - Dartington, Devon |
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| Generation 5 - Baron Martin De Tours of Cemais & Lady Geva De Burci, of Falaise: Married - 1069 - Newport, Shropshire |
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| Generation 5 - Lady Geva De Burci, of Falaise: Born - 1055 - Pitminster, Somerset |
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