CLASP Handlist Manuscript: Zwettl, Stiftsbibliothek, 41 Date xii^ex Origin Zwettl Contents in handlist: Frithegod of Canterbury and Brioude Octosyllabic verses on the precious stones of the heavenly Jerusalem, 'Cives Celestis', f. 74r, (FRITHEGOD.Lap.Octo)