Here is a sentence from a video game:
All know the emperor to be a good and holy man, for he may often be seen in the Temple of the One, making his devotions to the Nine Divines and the Communion of Saints.
I would understand it if it used can often, but may often doesn't currently make much sense to me.
I know that may can signify either permission or possibility, and I guess here it means the latter. Can would mean that the emperor visits the temple often, and may, as far as I understand, adds the author's uncertainty, or ignorance, to the meaning of can (the author doesn't know exactly whether the emperor visits the temple often, but thinks he definitely does once in a while).
Having written all that, I would like to ask: does may often mean that the author thinks the emperor definitely visits the temple, but doesn't know how often he does so?
Also, couldn't this may (compared to can) imply some disrespect for the emperor in terms of his godliness?