From experience, the events over recent decades in the Netherlands, Belgium, Spain, Japan and Denmark got a big ho-hum from the general American public and media. Basically an “oh by the way” aside in the news as a bumper before going to commercial, or a brief segment in the few minutes per hour block of “world” news you get on a slow day.
And that’s without counting on how many Americans can know Luxembourg from Limburg or Liechtenstein. Or will be asking why is the Grand Duke grand and could there also be an Awesome Duke or a So-So Duke.
(* Usual topics for “world” news for USA: Middle East; war elsewhere where we may be directly or indirectly interested; China doing something that affects our interests; event elsewhere that may cause refugees to head this way; mass casualty event in the hundreds OR where an American may have been involved; British Royal Family shenanigans.)
Based on the royals of The Netherlands, it also helps if the younger female members of the family are blonde and good looking. How photogenic is Princess Stephanie?
Henri and Stephanie are a fine looking couple. I saw the video of their wedding on YouTube. One thing is the man who walked her up the aisle was her older brother, she was the youngest of eight kids. When the couple, before the vows, greeted a very elderly man I realized this was her father. He was in his early sixties when she was born.
Americans don’t care about Luxembourg because they don’t know anything about it. They couldn’t point to it on a map and I doubt they could even spell it correctly. I don’t think it’s ever mentioned in public schools unless in a history class on WWII.
Plus, we’re not all that interested in monarchies, (except for the UK of course, since we used to be part of that one). I only know about Luxembourg because I’ve traveled to Belgium, and because my father was in the Army unit that did clean-up after the Battle of the Bulge, before continuing its march into Germany.
and 
as you prefer. That’s 
There must be 50 ways to leave your castle. 