__
                         |  
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                      |  |
                      |  |__
                      |     
 _William BYRD I______|
| (1652 - 1704) m 1673|
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|                        |
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|                           
|
|--Ursula BYRD 
|  (1681 - 1698)
|                         __
|                        |  
|                      __|
|                     |  |
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|                     |     
|_Mary HORSMANDEN ____|
  (1652 - ....) m 1673|
                      |   __
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