| Roger Leyburn ( - ca1271) |
Sir Henry de Sandwich |
| N N ( - ca1265) |
| William de Leyburn Lord Leyburn | Juliane de Sandwich |
| b. d. bef 12 Mar 1310 . 1st baron: 6 Feb 1299. Once owned Leeds castle. Campaigned for 27 yrs. |
b. d. bef 1328 . Heir. |
| Sir Thomas de Leyburn > Idoine de Leyburn < |