I don't really want the embargo, and we are currently in a civil war that your ally is SUPPORTING, along with our military thing, that was meant to be our rule the entire time and we are still changing it.
The prince would receive an anonymous note with the symbols of a head an arrow flying to it and then a circle with 3 stars on it. Below in small print would be several words written in an unknown language
Guards are patrols are tightened around the Kremlin. The only way to kill the Prince now is to invade. Which is absolutely impossible for 2 small nations.