This leader sent Fritz von Holstein to spy on the 
This leader sent Fritz von Holstein to spy on the ambassador to France, Harry von Arnim, and find evidence to try him for treason. He gained several new territories for his country in the Peace of Nikolsburg, which ended a war in which his forces won the decisive Battle of Königgrätz. This man authorized Adalbert Falk to pass the May Laws as part of his targeting the Catholic Church in his Kulturkampf. After his appointment by Wilhelm I, this man practiced realpolitik as chancellor of Prussia. For 10 points, name this German statesman known as the "Iron Chancellor."
This leader sent Fritz von Holstein to spy on the ambassador to France, Harry von Arnim, and find evidence to try him for treason.
Otto Eduard Leopold von Bismarck