The works of Pietro Monte had been forgotten for many centuries, and only recently have their merits been recognised again. This research note presents a newly discovered manuscript, the Libro del exercicio de las armas, a 19th century copy of the Spanish vernacular version of the Collectanea known as the “Escorial Manuscript”. The discovery is introduced by a brief survey of the citations of this manuscript and its source in the historiography and by a map displaying the known printed copies of the Collectanea. A review of the bibliography and provenance of the manuscript contributes to our understanding of its historical importance.
