| b 1114, Of, Wellingford, Oxfordshire, England | Thurston Basset | Ralph Basset | ||
| Thomas Basset | b 1050 | |||
| | b 1070 | ||||
| Gilbert Basset | ||||
| |b 1090 | | | |||
| |d 1165 | Mrs-Thomas Basset | |||
| | | b 1072 | |||
| Joan Basset | Mr Sire D' Ouilly | |||
| |Alberic I Count Dammartin, High Chamberlain | Nigel D' Oilly, [Constable] | |m 1150 | Robert II D' Oilly, [Baron] | b 1040 |
| | | |b 1070 | Agnes | ||
| Edith D' Oilly | d 1142 | b 1044 | Sigulf Fitzforne | > |
| b 1094 | | | Forne Fitzsigulf, [Baron] | ||
| d 1165 | Edith Fitzforne | b 1048 | ||
| b 1084 | Mrs-Forne Fitzsigulf | |||
| d 1152 | b 1050 | |||
| 1 | < | Aubrey II Dammartin |