_Geoffroy II CHÂTEAUDUN _+
                                                    | (.... - 1100)            
                          _Routrou III CHÂTEAUDUN _|
                         | (1080 - 1144)            |
                         |                          |_Beatrix of RAMERUPT _____
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 _Rotrou IV CHÂTEAUDUN _|
| (1135 - 1191)          |
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|                        |_Hawise of SALISBURY _____|
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|--Stephen CHÂTEAUDUN 
|  (1173 - 1205)
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|_Matilda of BLOIS ______|
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