Alexander de Percy 1280–1354 | | |
| | Elizabeth Mowbray 1340–1391 Sir William VIII Gascoigne 1335–1419 | | |
| | Sir Alexander Mowbray 1314–1368 Elizabeth Musters 1316–1347 | | |
| | John de Mowbray 1286–1322 | | |
| | Johanna de Neville 1261–… William de Percy 1260–1295 | | |
| | John de Neville 1227–1269 | | | | Geoffrey FitzRobert de Neville 1197–1242 Joan Margaret de Monmouth 1201–1247 | | | | Robert FitzMaldred 1170–1248 Isabel de Neville 1176–1254 | | | | Maldred FitzDolfin 1135–1183 Joan de Stuteville 1149–1210 | | | | Lord Dolfin FitzUchtred of Raby 1100–1136 Alice Durham FitzWalcher 1111–1150 | | |
|
|
| | | Geoffrey de Neville 1140–1193 | | | | Gilbert II de Neville 1115–1169 | | |
| | | Bertram de Bulmer 1100–1166 | | |
|
|
|
|
| | | John de Monmouth 1180–1257 | | | | Walerand de Monmouth 1165–… |
|
|
|
|
|
|
