For a bit of context: the house of Bourbon - Two sicilies has no land for 150 years. They used to rule the south of Italy but after the Italian “unification” (or conquest) they got kicked out and have no real power.
While this may still be a conflict of interest since I am pretty sure they are still filthy rich and they may have economic interests in the US. But there is no foreign power interference here since there is no foreign power 🙂
There is a reason states don’t have military 😉