_Roger IV of TOSNY _____+
                                                   | (1160 - 1208)          
                       _Raoul V of TOSNY __________|
                      | (1189 - 1239) m 1233       |
                      |                            |_Constance of BEAUMONT _+
                      |                              (1170 - 1226)          
 _Roger V of TOSNY ___|
| (1235 - 1264) m 1255|
|                     |                             ________________________
|                     |                            |                        
|                     |_Petronilla Pernel of LACY _|
|                       (1198 - 1288) m 1233       |
|                                                  |________________________
|                                                                           
|
|--Alice of TOSNY 
|  
|                                                   _Henry V of BOHUN ______+
|                                                  | (1176 - 1220)          
|                      _Humphrey IV of BOHUN ______|
|                     | (1208 - 1275)              |
|                     |                            |_Maud of MANDEVILLE ____
|                     |                              (1190 - 1236)          
|_Alice of BOHUN _____|
  (1235 - 1255) m 1255|
                      |                             _Raoul I LUSIGNAN ______+
                      |                            | (1160 - 1217) m 1200   
                      |_Matilda of LUSIGNAN _______|
                        (1210 - 1241)              |
                                                   |_Alice of CLARE ________+
                                                     (.... - 1245) m 1200