1265 - 1307 (42 years)
 | Robert MARTIN, IV 1310-1380 |
| Robert MARTIN, IV | |
| B: | 1310 |
| , Dorcestershire, ENG | |
| D: | 1380 |
| , Staffordshire, England | |
| Robert MARTIN, III, Heir * 1285-1375 |
| Robert MARTIN, III, Heir * | |
| B: | 1285 |
| , Staffordshire, ENG | |
| D: | 1375 |
| , Dorset, ENG | |
| Elizabeth, Heiress of Yeolvilton \ Yenalton | |
| B: | 1295 |
| Yeolvilton, Dorcest, England | |
| D: | 1313 |
| , Dorset, England | |
|
| Sir Robert MARTIN, II * 1265-1307 |
| Sir Robert MARTIN, II * | |
| B: | 1265 |
| Dartington House, Devonshire, England | |
| D: | 1307 |
| , Dorset, ENG | |
