Kyi (, Kiy; Ukrainian: Кий, Kyi) was the legendary founder of Kyiv and the Kyi dynasty, and the Prince (Knyaz) of the Polans. He was one of four siblings (brothers Kyi, Shchek, and Khoryv, and sister Lybid), who, according to the Primary Chronicle, lived in the Dnieper mountains and built a city on the right high bank of the Dnieper, named Kyiv, after the eldest brother. Kyi was also named the founder of the town of Kyivets on the Danube. From Kyi and his brothers the chroniclers deduced the Polans tribe. Parallel evidence In the Armenian "History of Taron" by Zenob Glak (VIII century) it is mentioned that three brothers: Quar(or Kuar.A name after city of kyiv), Meltei (Mile) and Horean(Khoriv) founded three cities in the country Poluny, and after some time they built a settlement on Mount Kerkey, where there was space for hunting, lots of grass and trees. This story with its names and details is very reminiscent of the testimony of the Kyiv chronicler. An explanation for this can be found both in the common source (probably Scythian) of Ukrainian and Armenian legends, and in the common mythological plot used to explain the founding of the many cows that inhabit the city. Byzantine sources report that the Kievan prince Kyi (originally Kuver) was brought up at the court of Emperor Justinian I in his youth, converted to Christianity in Constantinople, and was educated there. "He had the great honor of the king," received benefits in the Lower Danube, where he founded the "town of Kiev", but due to resistance from local tribes could not gain a foothold there. That's why Kyi returned home, where he "laid" (probably rebuilt or moved from another city) his capital Kiev. According to other Byzantine testimonies, Kyi was a contemporary of Emperor Heraclius (575–641). As his contemporary John of Nicaea writes in detail, "by the power of the Holy and Life-Giving Baptism he received, he defeated all barbarians and pagans." The friendly ties of the ancient prince with the Byzantine imperial court is evidenced by the "Primary Chronicle". Archaeological evidence In the sixth to seventh centuries, the borders of three cultural groups of monuments converged on the Polans land — Kyiv Oblast — Prague, Penkiv and Kolochyn cultures, and in the eighth to tenth centuries — Luka-Raikovetska and Volyntsevo culture. From the very beginning, Kyiv was the center of not one, but