Yep, Leicester is the clearest example. Their owner and the owner of sponsor King Power are one in the same - but they apparently voted for this proposal! City of course don’t have any related parties acting as sponsors. As PIF have already been found to be separate from the Saudi state I’m not sure what deals this will block for Newcastle either.Baffled by the vote in the premier league about related part there are loads of clubs sponsored by owners then the reporting is all about city and Newcastle
Going back in history this was seen as the classic way of a wealthy man supporting his local team. Jack Walker/Walker Steel at Blackburn was the most notable example but I’m sure there were often links between owner and sponsors, and why wouldn’t there be? There can be an argument for fair play type rules but it is hard to see why related party sponsorships would be an automatic part of that.