Origins of Dehbed/Dihqan

[Death to the False Egyptians]

As a supporter of Europa Barbarorum, i have become aware that the game didn't give player a good explanation about Parthian society especially when a group of lesser nobles called Dehbed appears in the Parthian army roster as it they are the forerunner of the Sassanid Dihqan but unfortunately i found no information about Dehbed at all. To make things worse, the strategy map have added a retinue called Dihqan chieftain for Pahlava general/family member while no solid evidence suggest that Dihqan appears in 272 BC.

As a player of EB, all i ask is a decent answer from the team.

Thank you.