The Saxon Princes taken Hostage

It appears that tensions are still running high among the Saxon and Thuringian nobility following the war between Friedrich and Wilhelm. A knight, Kunz von Kauffungen, who fought on Friedrich's side but was financially ruined by the conflict, has banded together with several disaffected Thuringian knights and hatched a plan to take the our ruler's sons hostage to gain leverage for blackmail. The act was a success, and they were able to cross the border into our nation, from where they have issued a demand: 200 ducats or both princes die.