Nathan's holocron was a holocron that contained the entire teachings of Nathaniel Kenobi Solo—except for what he had learned during the Reaver War. It was actually Nathan's ancestor's holocron, but Nathan had expanded it later in his life. Although it was more commonly known as the holocron of both Nathan's, it had also been in possession of their ancestor, the Jedi Exile. It was considered almost a "Holy Grail" of sorts to the Jedi and the thought of someone other than a Jedi viewing it was unheard of.