There are several legendary accounts of the origin of the city.  One tells of members of a Slavic tribe (Eastern Polans), brothers Kyi (the eldest, after whom the city was named) Shchek and Khoryv, and their sister Lybid, who founded the city (See the ''Primary Chronicle''). Another legend states that Saint Andrew passed through the area in the 1st century.  Where the city is now he erected a cross, where a church later was built. Since the Middle Ages an image of Saint Michael has represented the city as well as the duchy.