Dominican Proser from the late 13th century-early 14th century with 14th century additions. Origin unclear - possibly from Calais, France or from England.
Description from the British Library: LIBER Prosarum, for the use of the Dominican nunnery of Poissy: a collection of fifty-six proses with musical notation, preceded by some responsoria and, at f. 7 b., the office "ad noviciam recipiendam." A leaf…
This exemplar was created for the use of Humbert of Romans, the Master General of the Dominican Order responsible for much of the unification of the Dominican liturgy. It was copied, along with two other surviving exempla, at the Convent of Saint…
Description from the Bodleian Library: Sanctorale (fol. 1), beginning with St. Stephen (26 Dec.); common of the saints (fol. 76v); some votive masses and masses for the dead (fol. 82); kyriale (fol. 84v); Dominican proses in honour of the Virgin…