Source: SK-Bra (Bratislava) Missale of Bratislava I EC Lad. 3Folio: 250rbSequence: 4Full text: Beatus es Simon Petre quia caro et sanguis non revelavit tibi sed pater meus qui es in caelisFeast: Petri, PauliOffice: MASSGenre: AlVPosition: 01Cantus ID: g00029a