クレメンス・フォン・メッテルニヒ
Christoph Wilhelm von Koch (; 9 May 1737 – 25 October 1813, Strasbourg; from 1777 Edler von Koch) was a Protestant diplomat, politician, librarian and writer from Alsace, who also taught constitutional law and history. His pupils included Johann Wolfgang von Goethe, Maximilian von Montgelas, Klemens von Metternich and Louis-Guillaume Otto.