How advanced students in the 15th century learned to understand Latin with the help of Middle Dutch becomes clear in Master Simon’s (?) commentary in the form of questions on the famous medieval didactical poem on grammar
Doctinale of Alexander de Villa Dei. The master discusses notions such as the six cases of Latin (nominative, genitive, dative, accusative, vocative and ablative), construction, impediments of construction, and participles. The author has a conceptualist approach of language and criticizes interpretations by realists (Modists). He refers to other important medieval grammars, viz.
Commentary on Priscian attributed to Peter Helias,
Compendium de modis significandi attributed to Thomas of Erfurt, the
Regulae Puerorum and the
Egbert P. Bos, Ph. D. (1980) is Professor Emeritus of medieval logic and semantics at Leiden University. He has published books and articles on 14th-century logic and semantics, including
Nicholas of Amsterdam, Commentary on the Old Logic (Benjamins, 2016).
All interested in the history of Latin grammar, especially of the 15th century.