suspect gold dove is symbol for Semiramis:
According to Diodorus, a first century BC Greek historian, Semiramis was of noble parents, the daughter of the fish-goddess Derketo of Ascalon in Assyria and of a mortal. He related that Derketo abandoned her at birth and drowned herself and that doves fed the child until Simmas, the royal shepherd, found her.
The association of the fish and dove is found at Hierapolis Bambyce (Mabbog, now Manbij), the great temple that according to one legend, was founded by Semiramis,[26] where her statue was shown with a golden dove on her head.[27]
https://en.wikipedia.org/wiki/Semiramis