The main character in a romanticized historical novella by Nikolai Gogol, possibly based on several historical personalities whose identities and deeds are unclear.

From the Ra Contact: One of a few entities of negative orientation who succeeded in opening the gate to intelligent infinity and thus got harvested; had been bent single-mindedly upon service to self, sparing no efforts in personal discipline to double, re-double and so empower the gateway; went to a fourth-density planet which was dedicated to the pursuit of the understanding of the Law of One through service to self; that Ra mentioned the character of a fictional novel whose historical origin does not seem identifiable is a puzzle.

Reference

11.8-11