_Abraham Samuel WARBURG _+
                                                    | (1798 - 1856)           
                       _Moritz Moses WARBURG _______|
                      | (1838 - 1910)               |
                      |                             |_Sara WARBURG ___________+
                      |                                                       
 _Max Moritz WARBURG _|
| (1867 - 1946) m 1899|
|                     |                              _________________________
|                     |                             |                         
|                     |_Charlotte Esther OPPENHEIM _|
|                       (1842 - 1921)               |
|                                                   |_________________________
|                                                                             
|
|--Eric WARBURG 
|  (1900 - 1990)
|                                                    _________________________
|                                                   |                         
|                      _____________________________|
|                     |                             |
|                     |                             |_________________________
|                     |                                                       
|_Alice MAGNUS _______|
  (1873 - 1960) m 1899|
                      |                              _________________________
                      |                             |                         
                      |_____________________________|
                                                    |
                                                    |_________________________