_Sinatruces ARSACID _______________+
                                                   |                                   
                       _Phraates III ARSACID ______|
                      |                            |
                      |                            |___________________________________
                      |                                                                
 _Orodes II ARSACID __|
|                     |
|                     |                             ___________________________________
|                     |                            |                                   
|                     |____________________________|
|                                                  |
|                                                  |___________________________________
|                                                                                      
|
|--Phraates IV ARSACID 
|  
|                                                   _Mithridates I Callinicus ORONTID _+
|                                                  |                                   
|                      _Antiochus I Theos ORONTID _|
|                     |                            |
|                     |                            |_Laodice VII Thea of SELEUCID _____+
|                     |                                                                
|_Laodice of ORONTID _|
                      |
                      |                             ___________________________________
                      |                            |                                   
                      |____________________________|
                                                   |
                                                   |___________________________________