[Pathfinder] Paladins of Neutral Gods

[Callista]

You don't have to have a deity as a paladin. So that would allow you to be a paladin of a cause who also happens to worship a True Neutral deity--the two things being quite unrelated, since your power comes from the Upper Planes rather than from the deity, whom you revere because you share a common cause. It would be unusual but I don't think most DMs would really have an issue with it.

This doesn't extend to evil or CN deities because, obviously, that would go against your (LG) paladin's code: Worshiping an evil deity would mean associating quite closely and willingly with evil; and while you could easily agree with the Good aspect of a CG god (Corellon Larethian springs to mind here), you'd simply have nothing in common with a CN one.