It could be quite interesting, making them live in a cave somewhere, secluded, on the verge of death for example and associating a quest to discover his identity.
I really don't know to what extent this would be possible, but in my humble opinion, could contribute to reinforce the feeling that your character is not just some random guy who was given an awesome destiny by god knows who, but an entity that has a tangible connection to the world he's evolving in and its history. Of course you could just include this connection in your characters back story, but it wouldn't be the same
.Any thoughts?
If this has been done before, or is a popular practice, please disregard.
