Little Office of the Blessed Virgin Mary (as used at the Prague court)
Officium Parvum Beatae Mariae Virginis
Charles IV records in the Vita Caroli that he prayed the cycle of the Hours devoted to the Blessed Virgin during his youth in France, and after returning to Bohemia he founded daily Marian Hour celebrations at Prague Cathedral. The Little Office of the Virgin — the structural core of almost every Book of Hours produced in the 14th century — was the standard private prayer of lay nobility and educated clergy alike across Latin Christendom. Archbishop Arnošt of Pardubice and the court's Marian devotion programme made this the living daily prayer of Charles IV's entire household. No single manuscript has been confirmed as the personal royal copy, though the Vita Caroli and the contents of surviving Bohemian Books of Hours leave no doubt that this cursus was prayed at court.