The article discussesthemilitary career ofthe Englishman Giovanni Aguto, amercenary captain who servedthe Italian city-states of Italy and the Papal States for a long time. Based on the material of the Florentine chronicles the brothers Giovanni and Matteo Vilanni, Marchione Stefani, information reported by anonymous authors, the path from an ordinary mercenary to a famous condottiere and honorary citizen of Florence is shown.