_Christian August HOLSTEIN-GOTTORP _+
                                                                                                                | (1672 - 1726)                      
                                                       _George Louis HOLSTEIN-GOTTORP __________________________|
                                                      | (1718 - 1763) m 1750                                    |
                                                      |                                                         |_Albertina Frederica of ZÄHRINGEN _+
                                                      |                                                           (1682 - 1755)                      
 _Peter I Frederick Louis HOLSTEIN-GOTTORP ___________|
| (1755 - 1829)                                       |
|                                                     |                                                          ____________________________________
|                                                     |                                                         |                                    
|                                                     |_Sophie Charlotte of SCHLESWIG-HOLSTEIN-SONDERBURG-BECK _|
|                                                       (.... - 1763) m 1750                                    |
|                                                                                                               |____________________________________
|                                                                                                                                                    
|
|--Peter Frederick George OLDENBURG 
|  (1784 - 1812)
|                                                                                                                ____________________________________
|                                                                                                               |                                    
|                                                      _Frederick II Eugene WÜRTTEMBERG _______________________|
|                                                     | (1731 - 1797)                                           |
|                                                     |                                                         |____________________________________
|                                                     |                                                                                              
|_Frederica Elisabeth Amalie Auguste of WÜRTTEMBERG _|
  (1765 - 1785)                                       |
                                                      |                                                          ____________________________________
                                                      |                                                         |                                    
                                                      |_Friederike Sophia Dorothea of HOHENZOLLERN _____________|
                                                        (1736 - 1798)                                           |
                                                                                                                |____________________________________