Well, it is the same if you're Queen Margarethe or another Scandinavian royal--their links are much tighter than with that of the British royals. Queen Margarethe is first cousin to the King of Sweden (their mother and father respectively being siblings) and King Harold of Norway's mother (Martha) was a Swedish princess as well. The Swedish link (through Princess Astrid, sister of Crown Princess Martha) ties together the families of Belgium and Luxemburg as well since those rulers are grandchildren of Astrid. These royals attend each other's events (weddings, baptisms, funerals, etc) much more frequently than the British royals do it seems. The British royals often seem to send a token royal (often Edward & Sophie) whereas it seems much warmer with the other houses. Plus, the heirs & their wives of thsoe countries seem to be more of an age than either Charles or William--they fall in between generally.