_John I of DREUX ____________+
                                                 | (1217 - 1286)               
                       _John II of DREUX ________|
                      | (1238 - 1305)            |
                      |                          |_Blanche of BLOIS-CHAMPAGNE _+
                      |                            (1226 - 1283)               
 _Arthur II of DREUX _|
| (1262 - 1312)       |
|                     |                           _Henry III PLANTAGENET ______+
|                     |                          | (1207 - 1272) m 1236        
|                     |_Beatrice of PLANTAGENET _|
|                       (1242 - 1274)            |
|                                                |_Eleanor of BARCELONA _______+
|                                                  (1223 - 1291) m 1236        
|
|--Guy of DREUX 
|  (1287 - 1331)
|                                                 _____________________________
|                                                |                             
|                      __________________________|
|                     |                          |
|                     |                          |_____________________________
|                     |                                                        
|_Marie of LIMOGES ___|
                      |
                      |                           _____________________________
                      |                          |                             
                      |__________________________|
                                                 |
                                                 |_____________________________