_Robert II DREUX ______________+
                                                             | (1154 - 1218)                 
                               _Peter I of DREUX ____________|
                              | (1187 - 1250) m 1213         |
                              |                              |_Yolanda of COUCY _____________
                              |                                                              
 _John I of DREUX ____________|
| (1217 - 1286)               |
|                             |                               _______________________________
|                             |                              |                               
|                             |_Alix of THOUARS _____________|
|                               (1200 - 1221) m 1213         |
|                                                            |_______________________________
|                                                                                            
|
|--John II of DREUX 
|  (1238 - 1305)
|                                                             _Theobald III BLOIS-CHAMPAGNE _+
|                                                            | (1179 - 1201)                 
|                              _Theobald IV BLOIS-CHAMPAGNE _|
|                             | (1201 - 1253)                |
|                             |                              |_Blanche of JIMÉNEZ __________+
|                             |                                (.... - 1228)                 
|_Blanche of BLOIS-CHAMPAGNE _|
  (1226 - 1283)               |
                              |                               _______________________________
                              |                              |                               
                              |_Agnes of BEAUJEU ____________|
                                (.... - 1231)                |
                                                             |_______________________________