Motetus Medieval polyphony in its manuscripts
Piece

Se j'ai servi longuement / Trop longuement m'a failli / Pro patribus

No composer named in the sources used here.

Sources

ManuscriptFolioNo. in the sourceDateSource
Montpellier, Bibliothèque interuniversitaire de Montpellier, H 196 ff. 127v- 89 c. 1300 source