Udmurts inhabited the Vyatka land before the arrival of Russian settlers. According to the Legend of the Vyatka Land they came from Novgorod in 1174, conquered Kotelnich and Nikulitsyn with the supernatural help of saints Boris and Gleb and founded Khlynov which became the main settlement of the Vyatka land (often called "Vyatka" as well). This account was disputed by some historians who consider the Legend to be a much later and unreliable source. The Russian settlement appears in the archeological record of the 11th–13th centuries and intensifies after the Mongol conquest of Rus. The first undisputed mention of Vyatka in Russian chronicles dates to 1374 when a band of ushkuyniks from Vyatka raided Sarai. According to an Udmurt legend, the Udmurts who lived in the settlement on the site of future Vyatka burned down their sanctuary and migrated east to the Cheptsa river.