_William I of FERRERS _____+
                                                   | (.... - 1190)             
                           _William II of FERRERS _|
                          | (1168 - 1247)          |
                          |                        |_Sybil of BRAOSE __________+
                          |                                                    
 _William III of FERRERS _|
| (1193 - 1254)           |
|                         |                         ___________________________
|                         |                        |                           
|                         |_Alice of CHESTER ______|
|                                                  |
|                                                  |___________________________
|                                                                              
|
|--Agnes of FERRERS 
|  (1250 - ....)
|                                                   _Saher of QUINCY __________
|                                                  | (1155 - 1219)             
|                          _Roger of QUINCY _______|
|                         | (1195 - 1264)          |
|                         |                        |_Margaret of BEAUMONT _____+
|                         |                          (1156 - 1234)             
|_Margaret of QUINCY _____|
  (1218 - 1279)           |
                          |                         _Alan of GALLOWAY _________
                          |                        | (1190 - 1234)             
                          |_Helen of GALLOWAY _____|
                                                   |
                                                   |_Helen Fitzroland of LACY _+
                                                     (1193 - 1245)