Fiore Furlano de Cividale d'Austria, delli Liberi da Premariacco (Fiore dei Liberi, Fiore Furlano, Fiore de Cividale d'Austria; born ca. 1350; died after 1409) was a late 14th century knight, diplomat, and itinerant fencing master.
He is the earliest Italian master from whom an martial arts manual has survived. His Flower of Battle (Fior di Battaglia, Flos Duellatorum) is among the oldest surviving fencing manuals.
Fiore dei Liberi was born in Cividale del Friuli, a town in the Patriarchal State of Aquileia in the Friuli region of modern-day Italy, the son of Benedetto and scion of a Liberi house of Premariacco. The term Liberi, while potentially merely a surname, probably indicates that his family had imperial immediacy, either as part of the Edelfrei (nobili liberi, "free nobles"), the Germanic unindentured knightly class which formed the lower tier of nobility in the Middle Ages, or possibly of the rising class of Imperial Free Knights. It has been suggested by various historians that Fiore and Benedetto were descended from Cristallo dei Liberi of Premariacco, who was granted immediacy in 1110 by Emperor Henry V, but this has yet to be confirmed.
Fiore wrote that he had a natural inclination to the martial arts and began training at a young age, ultimately studying with "countless" masters from both the Italian and German parts of the Holy Roman Empire.
He also writes of meeting many "false" or unworthy masters who lacked even the limited skill he'd expect in a good student,
and mentions that on five separate occasions he was forced to fight duels for his honor against certain of these masters whom he described as envious because he refused to teach them his art; the duels were all fought with sharp longswords, unarmored except for gambesons and chamois gloves, and he stated that he won each without injury.
He further offers an extensive list of the famous condottieri that he trained, including Piero Paolo del Verde (Peter von Grünen), Niccolo Unricilino (Nikolo von Urslingen), Galeazzo Cattaneo dei Grumelli (Galeazzo Gonzaga da Mantova), Lancillotto Beccaria di Pavia, Giovannino da Baggio di Milano, and Azzone di Castelbarco, and also highlights some of their martial exploits.