Abt 1220 - 1266 (~ 45 years)
| Christiana de Mowbray | |
| B: | Abt 1305 |
| Kirklington, Yorkshire, England | |
| D: | 25 Dec 1362 |
| Holland, Lancashire, England | |
| William Plumpton | |
| B: | Abt 1295 |
| Plumpton, Yorkshire, England | |
| D: | 1362 |
| Berwick-Upon-Tweed, Northumberland, England | |
| John de Mowbray | |
| B: | 29 Nov 1310 |
| Yorkshire, England | |
| D: | 1361 |
| Alexander de Mowbray | |
| B: | Abt 1314 |
| Yorkshire, England | |
| D: | Abt 1391 |
| 8th Baron Mowbray John de Mowbray | |
| B: | 04 Sep 1286 |
| England | |
| D: | 23 Mar 1322 |
| York, Yorkshire, England | |
| Aline de Braose | |
| B: | 1291 |
| England | |
| D: | Bef 20 Jul 1331 |
| Bramber, Sussex, England | |
| 7th Baron Mowbray Roger de Mowbray | |
| B: | 1254 |
| Yorkshire, England | |
| D: | 21 Nov 1297 |
| Ghent, Belgium | |
| Rose de Clare | |
| B: | Abt 1255 |
| England | |
| D: | Aft 1316 |
| Hovingham, Yorkshire, England | |
|
| 6th Baron Mowbray Roger de Mowbray | |
| B: | Abt May 1220 |
| Thirsk Castle, Thirsk, Yorkshire, England | |
| D: | 1266 |
| Yorkshire, England | |
| Maud Beauchamp | |
| B: | Abt 1229 |
| Bedford, Bedfordshire, England | |
