1265 - 1307 (42 years)
| Event Map | |
Event
 | Generation 2 - Baron Robert Martin, I of Dartington Athelhampton: Born - 1235 - Athelhampton, Dorset, England |  | | Generation 2 - Baron Robert Martin, I of Dartington Athelhampton: Died - 1285 - Athelhampton, Dorset, England | | | Generation 2 - Baroness Mary Yeovilton, of Athelhampton: Born - Abt 1240 - Athelhampton, Dorset, England | |  | Generation 4 - Baron William Fitzmartin, II of Blagdon Cemise and Dartington: Born - 1160 - Blagdon, Somerset, England | |  | Generation 4 - Baron William Fitzmartin, II of Blagdon Cemise and Dartington: Died - 1215 - Galway, Ireland | |  | Generation 5 - Baron William Fitzmartin, I of Cemais & Lady Angharad Verch Rhys, Princess of South Wales: Married - 1159 - Dartington, Devon, England | |
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