_Guy I CHÂTILLON _________+
                                                  | (.... - 1342) m 1310      
                         _Louis II of CHÂTILLON _|
                        | (.... - 1346)           |
                        |                         |_Margaret of VALOIS _______+
                        |                           (1295 - 1342) m 1310      
 _Guy II of CHÂTILLON _|
| (.... - 1397)         |
|                       |                          _John AVESNES _____________+
|                       |                         | (1288 - 1355)             
|                       |_Jeanne of AVESNES ______|
|                         (1323 - 1350)           |
|                                                 |_Margaret of SOISSONS _____
|                                                   (.... - 1344)             
|
|--Louis III CHÂTILLON 
|  (.... - 1391)
|                                                  ___________________________
|                                                 |                           
|                        _William I of DAMPIERRE _|
|                       | (1324 - 1391)           |
|                       |                         |___________________________
|                       |                                                     
|_Marie of DAMPIERRE ___|
                        |
                        |                          _Louis II of SAVOY ________+
                        |                         | (1290 - 1348)             
                        |_Catherine of SAVOY _____|
                          (1324 - 1388)           |
                                                  |_Isabelle of CHALON-ARLAY _