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Egidius de Francia
late 14th century
Born: France
Nationality: French
Egidius de Francia was a French music theorist of medieval music, known for the short treatise De motettis componendis. He possibly was an Augustinian friar, as in a miniature illumination he is titled Magister Egidius Augustinus. Along with "Guilelmus de Francia", he was probably a friar at the Monastery of Santo Spirito in Florence.
Egidius de Murino is, with Philippus de Caserta, one possible author of the Tractatus figurarum, a practical guide to the notation of ars subtilior. Egidius was also the author of De modo componendi, a theoretical guide to motet writing.
He is featured in the Squarcialupi Codex, the British Library manuscript Add MS 29987 and the Modena Codex (often known with the sigla ModA).
Read more at https://en.wikipedia.org/wiki/Egidius_de_Francia