According to legend, the city was founded by three brothers, Kyi, Shchek and Khoryv, and their sister Lybid. "Kiev" is named after Kyi, the eldest brother. The exact century of the city foundation has not been determined. Legend has it that the emergence of a great city on the future location of Kyiv was prophesied by St. Andrew (d. AD 60/70), who was fascinated by the spectacular location on the hilly shores of the Dnieper River. The city is thought to have existed as early as the 6th century, initially as a Slavic settlement. Gradually acquiring eminence as the center of the East Slavic civilization, Kiev reached its Golden Age as the center of the Kievan Rus' in the 10th–12th centuries.