Now what do Wikipedia rules say?
WP:COI wrote:Conflict of interest (COI) editing involves contributing to Wikipedia about yourself, family, friends, clients, employers, or your financial and other relationships.
WP:COI wrote:If you receive or expect to receive compensation (money, goods or services) for your contributions to Wikipedia: you must [do all sorts of things]
I'm sure Sir Rosie will do all of those things.WP:COI wrote:If you become involved in an article where you have any COI, you should always let other editors know about it, whenever and where ever you discuss the topic
So what is this knighthood? Google Translate also calls it "Knight of the World's Pascalism", and, surprisingly, "knights of Serbian diphtheria", but I assume that Andy Mabbett FRSA knows the correct translation: after all, it was he who started the article on this most notable of honours within minutes of Sir Rosie modestly tweeting about it to the world. Clearly worthy of an article now that it has been awarded to a Wikipedian.
Acknowledgements to GenderDesk for spotting this.