Tyche. From the Wikipedia: In ancient Greek city cults, Tyche (Τύχη, meaning "luck" in Greek, Roman equivalent: Fortuna) was the presiding tutelary deity that governed the fortune and prosperity of a city, its destiny.

Increasingly during the Hellenistic period, cities venerated their own specific iconic version of Tyche, wearing a mural crown (a crown like the walls of the city).