World of HYDE
Discovering our Ancestors and their descendants to all parts of the world. Last updated 15th March 2026.
Family: William De Grendon, Lord Of Ockbrook / Ermentrude De Ferrers (F49490)
Drag or scroll to see more of the chart.
Show family with spouse 
Show family with parents 
Select other spouses 
Select other parents 
 | William De Ferrers, 3rd Earl Of Derby (1140-1190)
|
 | Sibyl De Braose (1149-1228)
|
| William De Ferrers, 4th Earl Of Derby (1162-1247)  |
| Isabella De Ferrers (1166-1252) |
| Lady Petronill De Ferrers, Of Derby (1175-1237) |
| Robert De Ferrers, III Earl Of Derby (1171- ) |
| William De Grendon, Lord Of Ockbrook (1160-1203) |
| Ermentrude De Ferrers (1165-1215)
|
| Margaret De Grendon (1203- ) |