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                                  _____________________|
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                                 |                                                      
 _Sergei Plantonovich OBOLENSKY _|
| (1890 - 1978) m 1924           |
|                                |                      ________________________________
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|                                |_____________________|
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|                                                                                       
|
|--Ivan Sergeyevich OBOLENSKY 
|  (1925 - 2019)
|                                                       _William Backhouse ASTOR Jr_____+
|                                                      | (1829 - 1892) m 1853           
|                                 _John Jacob ASTOR IV_|
|                                | (1864 - 1912) m 1891|
|                                |                     |_Caroline Webster SCHERMERHORN _+
|                                |                       (1830 - 1908) m 1853           
|_Ava Alice Muriel ASTOR ________|
  (1902 - 1956) m 1924           |
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                                 |_Ava Lowle WILLING __|
                                   (1868 - 1958) m 1891|
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