Source: Praha, Knihovna Národního muzea, ms. XVI D 16Siglum: CZ-Pn XVI D 16Folios: 236rFolio: 236rSequence: 2Full text (or incipit): Ad laudesGenre: SqRubrics2: (De confessore non pontifice)Feast: Comm. unius ConfessorisFeast (text): Comm. unius ConfessorisCantus ID: ah54088Form: R