_____________________
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                       ________________________|
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                      |                                              
 _Roger HERDEBURGH ___|
|                     |
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|                     |________________________|
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|                                                                    
|
|--Ela HERDEBURGH 
|  (1286 - 1343)
|                                               _____________________
|                                              |                     
|                      _William of ODINGSELLS _|
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|_Ida of ODINGSELLS __|
                      |
                      |                         _Walter FITZROBERT __+
                      |                        |                     
                      |_Ela FITZWALTER ________|
                                               |
                                               |_Ida LONGESPEE ______