I found a hint:
"A large number of Persian names came into Georgian from the versions of the Šâh-nâma: Givi (< Gêv); Goderdz-i (< Gôdarz); Zurab-i (< Sohrâb);
Ketevan (<
Katâyûn); Zaal (< Zâl; cf. the family name Zaldastanishvili), etc."
http://www.cais-soas.com/CAIS/Culture/iranian_elements_georgian.htm
Lumia
http://onomastica.mailcatala.com