Kai Darab

Darab Kiani is a legendary king of Iran who ruled Iran after his father Kai Bahman and his mother Homai. He is the subject of the 12th-century Darab Nama. According to shahnameh his son "Dara" is king when Alexander the Great conquered Persia, a role historically fulfilled by Darius III.

It is rumored, town of Darab or Darabgerd has been built by him.

...
Wikipedia