When will people learn? Queen Elizabeth II broke precedent by attending the funeral of King Baudouin of the Belgians. This was the first funeral of a foreign sovereign she had ever attended. Her father, King George VI, did not attend foreign funerals or weddings after succeeding to the throne. Ditto Kings George V and Edward VII.
Check this list: http://royalmusingsblogspotcom.blogspot.com/2010/05/british-royals-and-foreign-royal-events.html How difficult is it for people to understand that the British sovereign sends representatives to weddings and funerals, and this has existed for more than 100 years. Very, very few exceptions. The last British king to attend a foreign royal wedding was in 1913!