| Male Alan De Percy, The Great, 2nd Baron of Topcliffe |
| Birth | 1067 | Alnwick, Northumberland, England |
| Death | 1135 | Whitby, Yorkshire, England |
| Burial | ||
| Marriage | 1087 | Folkingham, Lincolnshire, England |
| Father | William De Percy, 1. 1st Feudal Baron Of Topcliffe | F4759 Group Sheet | |
| Mother | Emma de Porte | F4759 Group Sheet | |
| Female Emma de Gaunt |
| Birth | 1069 | Folkingham, Lincolnshire, England |
| Death | 1088 | Folkingham, Bourne, Lincolnshire, England |
| Burial | ||
| Father | Gilbert, NEPHEW TO QUEEN MAUD, De Gaunt | F6904 Group Sheet | |
| Mother | Alice DeMontfort | F6904 Group Sheet | |
| Male William De Percy, 3rd Baron of Topcliffe |
| Birth | 1088 | Alnwick, Northumberland, England |
| Death | 1175 | Tonbridge, Kent, England |
| Burial | ||
| Spouse | Alice de Ros de Tonbridge | F2667 | |
| Marriage | ||
| Male Walter Rugemond DePercy, Baron |
| Birth | 1089 | Alnwick, Northumberland, England |
| Death | 1175 | Tonbridge, Kent, England |
| Burial |
| Male Alan, The Bastard, illegitimate, De Percy |
| Birth | 1096 | Alnwick Castle, Alnwick, Northumberland, England |
| Death | ||
| Burial |