1173 - 1224 (51 years)
| 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 | |
|
| 6th Baron of Thirsk William de Mowbray | |
| B: | 1173 |
| Thirsk Castle, Thirsk, Yorkshire, England | |
| D: | 1224 |
| Isle of Axholme, Epworth, Lincolnshire, England | |
