IV class
Green
Commemoration of St. Giles, Abbot
Commemoration of the Twelve Holy Brothers, Martyrs
Mass of preceding Sunday (Green), no Gloria, commemorations added, no Credo, common preface
OR
Mass of either of the commemorated feasts with commemoration of the other, Gloria, no Credo, common preface
Matins: Invitatorium and Hymn per annum as given in the psalter; lessons from occurring scripture, no Te Deum
Lauds: Antiphons and psalms of the feria (first schema); remainder per annum as given in the psalter; oration of the preceding Sunday; commemorations added
Hours: Antiphons and psalms of the feria; remainder per annum as given in the psalter; oration of the preceding Sunday
Vespers: Antiphons and psalms of the feria; remainder per annum as given in the psalter; oration of the preceding Sunday
Compline: Of the feria