__
                                                    |  
                        _Johann Michael GRAUEL _____|
                       | (1699 - 1774) m 1724       |
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                       |                               
 _Johann Jacob GRAUEL _|
| (1730 - 1811) m 1770 |
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|                      |_Sybilla Elisabetha FULMAN _|
|                        (1704 - 1776) m 1724       |
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|                                                      
|
|--George GRAUEL 
|  (1785 - ....)
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|                       ____________________________|
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|                      |                               
|_Catharina CHRIST ____|
  (1753 - 1801) m 1770 |
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                       |____________________________|
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