The tercio was the product of the Italian Wars, in which the Spanish general, Gonzalo Fernández de Córdoba, reorganized the Spanish army throughout a series of conflicts at the end of the 15th century and early 16th century, into a tactically unique combination of combined arms centered around armored infantry.
Erhard Schön - Feldtwaybel (Veldwevel) - circa 1530 "Clas Feldtwaybel 'claims to have participated in the Battle of Pavia (1525). That was the decisive battle in the decades-long "Italian Wars," which many Swiss and German mercenaries fought. In Pavia Emperor Charles V won a resounding victory over the French King Francis I. According to this Clas was due to him. If veldwevel he was responsible for drawing up the battle.
Charles VIII, the Affable (1470 - 1498). King of France from 1483 to 1498. He married Anne of Brittany and had a son who died young. He invaded Italy and took the crown of Naples.