The legendary founder of the Mitannian dynasty was a king called , who was followed by a king.
This led to the formation of the kingdom of Mitanni.
According to the Hittitologist , Mitanni or Hanigalbat as it was known was permanently lost to Assyria during the reign of of the Hittites, who was defeated by the Assyrians in the process.
There is no trace of that in the Assyrian king lists; therefore it is probable that Ashur was ruled by a native Assyrian dynasty owing sporadic allegiance to the house of Shaushtatar.