Identity and Distinction from the Chronicler
The Orthodox tradition takes care to separate this Nestor from Saint Nestor the Chronicler, the monk credited with the Kievan chronicle tradition. The Chronicler, who reposed around 1114, is associated with the Near Caves of the Kiev monastery, while this Nestor lived as an ascetic in the Far Caves. The OCA listing names him directly as 'Saint Nestor (not the Chronicler) of the Far Kiev Caves' to prevent the two from being conflated.
Beyond this distinction, no independent biography survives. He has no dedicated encyclopedia article, and the repeated destruction of the Kiev Caves complex over the centuries likely accounts for the loss of any detailed account of his life.