IV class
White
Commemoration of Sts. Marius, Martha, Audifax, and Abachum, Martyrs, and of St. Canute, King and Martyr
Mass of the B.V.M. on Saturday (White), Gloria, no Credo, preface of the B.V.M. with Et te in veneratione, commemorations of St. Marius et al and of St. Canute, under same conclusion
OR
Mass of St. Marius et al. (Red), Gloria, no Credo, common preface, commemoration of St. Canute
OR
Mass of St. Canute (Red), Gloria, no Credo, common preface, commemoration of St. Marius et al.
Matins: Invitatorium and Hymn from BVM on Saturday; first two lessons from occurring scripture (second and third joined); third lesson of BVM on Saturday, mense ianuario, Te Deum
Lauds: Antiphons and psalms of the feria (first schema); remainder of BVM on Saturday, commemoration added
Hours: Antiphons and psalms of the feria; remainder of BVM on Saturday; in Prime responsory Qui natus es
I Vespers: Of the following Sunday; antiphons and psalms of Saturday; remainder per annum as given in the psalter; proper oration
Compline: Of Saturday