Relationship between the Parthian Kings and the Kayani heroes

Some investigators are believed that a group of Kayani’s hero are Parthian kings (or princes) who have come to Iranian national stories. The purpose of the present article is investigating whether some of the Parthians changed from king to heroes. The change should be occurred in the time of Parthians and Sassanids. If the changes had been occurred in the Parthians era, persons who entered the stories, must had a tremendous popularity among the people. These changes should be cause of increase the attractiveness of the stories. In the history, some of the Parthians kings which some investigators have been believed they changed to epic heroes, do not show any courage for the cultural development of the country, their actions are not logical and governed by justice and humanity. These changes cannot be related to the Sasanian era. We do not know any Parthian king and prince who had been so popular that the Sasanians had not succeeded in brushing him out of collective memory. If there was a very popular person, it is unacceptable that the Sassanians have allowed him to enter the national stories. Name is a tool for identifying people. There is no reason why the names of ordinary people with kings and hero cannot be identical, and it is not strange that a name be popular for a long time. Despite the fact that the heroes of the Kayani era can have historical reality, they are not equally to persons of the Parthian period.