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 *Support - not sure where these prestigious encyclopedias are coming from, but I can't recall the last time I've read a reference to ""Napoleon I"". ""Napoleon"", ""Bonaparte"" and ""Napoleon Bonaparte"" are widely used, but ""Napoleon I"" seem to be the least-commonly used term from my experience. And there would be a redirect from ""Napoleon I"", so links including that (i.e. lists and such) wouldn't be bothered. -   "