_Antiochus I Theos ORONTID _+
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                            _Mithridates II ORONTID _|
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 _Mithridates III ORONTID _|
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|--Antiochus III ORONTID 
|  (.... - 0017)
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|                           _Artavasdes I ATROPATES _|
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|_Iotapa of ATROPATES _____|
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