The terminology Ghisliero uses in his treatise is the fencing terminology used by his Italian contemporaries (e.g. Mandritto, Riverso, Fendente, Stoccata, et al.), curiously though, Ghisliero used a combination of guard names from various 16th-century Italian schools including some associated with Bolognese Swordsmanship and some of its close relatives (e.g. Guardia di Testa, Guardia di Faccia, and Guardia di Falcone) and the four rotational hand positions from Camillo Agrippa's manual.
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Also, Jeronimo de Carranza, the father of the Spanish school, was heavily influenced by Camillo Agrippa's application of geometry to combat in his book, entitled Trattato di Scientia d'Arme, which also incorporated the idea of a circle that encircled both duelists.