Sigmund Ringeck was a notable medieval German knight and fencing master, active in the 14th century. He is best known for his contributions to the martial arts of the time, particularly through his writings on combat techniques. Ringeck's work is often associated with the Liechtenauer tradition, which is a foundational system of German martial arts. His most famous manuscript, the Zettel, serves as a commentary on Johannes Liechtenauer's verses, providing detailed explanations and illustrations of various fighting techniques. Ringeck's teachings emphasize the importance of strategy, timing, and the use of different weapons, making his work influential in the study of historical European martial arts.