Source: Praha, Knihovna Národního muzea, ms. XVI D 16Siglum: CZ-Pn XVI D 16Folios: 169rFolio: 169rSequence: 1Full text (or incipit): Virginis venerande de numeroGenre: SqRubrics2: Agnetis virginisFeast: AgnetisCantus ID: ah53246Form: R