+--Robert De Billy  (-UNKNOWN)
                                       +--Herbert De Billy  (-UNKNOWN)
                                    +--Niveon De Billy  (-UNKNOWN)
                                    |  +-- Adelaye  (-UNKNOWN)
                                 +--Raoul De Billy  (-UNKNOWN)
                                 |  +-- Marie  (-UNKNOWN)
                              +--Guy De Billy  (-UNKNOWN)
                              |  +--Simone Du Mouthier  (-UNKNOWN)
                           +--Guyot De Billy  (-UNKNOWN)
                        +--Philippe De Billy  (-1331)
                     +--Jean De Billy  (-1409)
                     |  +--Marguerite D'Yvor  (-UNKNOWN)
                  +--Antoine De Billy  (UNKNOWN-UNKNOWN)
                  |  +--Jeanne Depuiseux  (-UNKNOWN)
               +--Jean De Billy  (-ABT 1488)
               |  +--Pernelle Devilliers  (-UNKNOWN)
            +--Antoine De Billy  (AFT 1440-1515)
            |  +--Marguerite D'Orgemont  (-UNKNOWN)
         +--Louis De Billy  (AFT 1470-1532)
         |  +--Germaine De La Grange De Trianon  (-UNKNOWN)
      +--Charles De Billy  (AFT 1507-1574)
      |  +--Philippe De Caulaincourt  (-UNKNOWN)
   +--Charles De Billy  (1564-ABT 1630)
   |  +--Jeanne De Maguerel  (-UNKNOWN)
+--Francois Billy  (ABT 1620-UNKNOWN)
|  +--Antoinette De Bertaucourt  (-UNKNOWN)
Jean-Francois Billy  (1649-UNKNOWN)
+--Helene Guilbert  (-UNKNOWN)