Sorry. I was trying to be funny. I was thinking that your scenario might well play out in an episode of Game of Thrones/House of Dragons. Game of Thrones previously had an episode where a lot of royals from one house were slain at a wedding banquet. (“The Red Wedding” episode.)
Sorry, I never watched it and don't know anything at all about it. But for people "in the know", your post most probably WAS a good one. :-)