This actually happened last year, Portugal issued a stamp commemorating the 200th anniversary of Richard Wagner's birth. Seems Portugal wasn't alone either, there were other countries who issued similar stamps. As far as I know, Portugal has no connection to Wagner (who of course was German). I know it's a common thing for many nations to issue commemorative stamps on subjects nothing to do with their own country's heritage. I think I enjoy stamps that are more connected to the country that issued them, though. How do you feel about it?