The pedigree coinage has been seen as a token of his ancestry, but a critical view might be considered. All the associations provide a contradictory image. The Euthydemid kings (Demetrius and Euthydemus) are not known to be related to Diodotus – in fact, Euthydemus I overthrew Diodotus II. The Seleucids were enemies of the Euthydemids as well – king Antiochus III had besieged Bactra for almost three years before claiming victory over Euthydemus I. However, Antiochus III did not take the territory and after Euthydemus I sent his son Demetrius in an envoy to him, he recognized them as the rightful kings in Bactria. Antiochus III is known to have used the epithet "Nikator" (""Νικάτωρ"" Greek for "Victorious").