Fiore dei Liberi was a 15th-century Italian fencing master known for his influential work on martial arts. He authored the treatise titled "Fior di Battaglia" (The Flower of Battle), which is one of the oldest surviving manuals on European martial arts. His teachings cover various weapons, including the longsword, grappling, and polearms, emphasizing techniques for both armed and unarmed combat. The treatise is notable for its detailed illustrations and explanations, showcasing the techniques and principles of combat. Fiore aimed to provide a comprehensive guide for students and practitioners, preserving the martial traditions of his time and influencing future generations of fighters and martial artists.