Koschei (), often given the epithet "the Immortal", or "the Deathless" (), is an archetypal male antagonist in Russian folklore. The most common feature of tales involving Koschei is a spell which prevents him from being killed. He hides his soul inside nested objects to protect it. For example, the soul (or in the tales, it is usually called "death") may be hidden in a needle that is hidden inside an egg, the egg is in a duck, the duck is in a hare, the hare is in a chest, the chest is buried or chained up on a far island. Usually he takes the role of a malevolent rival father figure, who competes for (or entraps) a male hero's love interest. The origin of the tales is unknown. The archetype may contain elements derived from the 12th-century pagan Cuman-Kipchak (Polovtsian) leader Khan Konchak, who is recorded in The Tale of Igor's Campaign; over time a balanced view of the non-Christian Cuman Khan may have been distorted or caricatured by Christian Slavic writers. Historicity and folk origins By at least the 18th century, and likely earlier, Koschei's legend had been appearing in Slavic tales. For a long period no connection was made with any historical character. Origin in Khan Konchak The origin of the tale may be related to the Polovtsian (Cuman) leader Khan Konchak, who dates from the 12th century. In The Tale of Igor's Campaign Konchak is referred to as a koshey (slave). Konchak is thought to have come/returned from Georgia (the Caucasus) to the steppe c.1126–1130; by c.1172 he is described in Kievan Rus' chronicles as a leader of the Polovtsi, and as taking part in an uprising. There is not enough information to reconstruct further details of Konchak's appearance or nature from historical sources; though unusual features or abnormalities were usually recorded (often as epithets) by chroniclers, none are recorded for Konchak. The legendary love of gold of Koschei is speculated to be a distorted record of Konchak's role as the keeper of the Kosh's resources. Koschei's epithet "the immortal" may be a reference to Konchak's longevity. He is last recorded in Russian chronicles during the 1203 capture of Kiev, if the record is correct this gives Konchak an unusually long life – possibly over 100 years – for the time this would have been over six generations. Koschei's life-protecting spell may be derived from traditional