Farn-Sasan
Farn-Sasan and Sasanian Ardashir I share a similar name. Because of this and the fact that both of their coin has a fire altar, historians think Sasanians and Indo-Parthians may have had common ancestry. Historians say that Farn-Sasan and Sasanian Ardashir I were rivals. Both wanted to be the King of Kings. The Iranologist Khodadad Rezakhani argues that Farn-Sasan was a superior of Ardashir I. He said that Ardashir I was only able to say that he was the King of Kings after he defeated Farn-Sasan in 226 and ended Indo-Parthian rule.