| b 1177, Of, Drakelow, Derbyshire, England | Nigel Stafford | William Fitz Nigel Stafford | Mrs Stafford | |
| Robert Gresley | b 1090 | |||
| | b 1125 | Elena | |||
| William Gresley | d 1183 | b 1095 | ||
| |b 1151 | | | |||
| | | Basilia | |||
| | | b 1130 | |||
| Alice Gresley | ||||
| |Richard Fitzgilbert | |m 1197 | |||
| |Of, Drakelow, Derbyshire, England | | | |||
| Basilia | ||||
| b 1151 | | | |||