Little Office of the Blessed Virgin Mary (as used at the Prague court)
Officium Parvum Beatae Mariae Virginis
Domine, labia mea aperies. Et os meum annuntiabit laudem tuam.
Our renderingO Lord, open my lips. And my mouth shall declare your praise.
What it is
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.
Why it still matters
The Little Office of the Virgin remains one of the most compact and accessible structures of Christian daily prayer; it can be prayed in full in under an hour and requires no specialist training, making it an ideal entry point into the Liturgy of the Hours for modern Christians.
Kept alongside
Seven Penitential Psalms (as used in Bohemian court devotion)
Septem Psalmi Poenitentiales
Scholars of Bohemian manuscript culture confirm that the Hours of the Virgin Mary together with the Seven Penitential Psalms were the most consistently recurring contents in devotional manuscripts intended for personal lay use in 14th-century Bohemia. The court Books of Hours of the Prague queens and princesses invariably included this selection, signalling the psalms' role as the primary daily vehicle of personal contrition and intercession. The seven psalms — 6, 31/32, 37/38, 50/51, 101/102, 129/130, 142/143 — were prayed as a sequential unit for compunction, preparation for death, and petition for mercy. Their biblical authority gave them a universality that no newly composed prayer could match.
Psalter and Hours of Bonne of Luxembourg (Prayer Book of Bonne of Luxembourg)
Psalterium et Horae Bonnae de Luxemburgo
This intimate psalter-prayer book was commissioned for Bonne of Luxembourg (1315–1349), daughter of King John the Blind of Bohemia, sister of Emperor Charles IV, and wife of the future King John II of France, who died of plague in 1349 before her husband's coronation. Executed in Parisian grisaille by Jean Le Noir and his daughter Bourgot, it contains Psalms, a calendar, litanies, canticles, the Creed, French vernacular prayers, and striking memento mori meditations — including the Three Living and the Three Dead — that reflect the Black Death anxiety of its moment. Its approximately 200 marginal bird illustrations across the psalms reflect a characteristically Parisian love of natural observation alongside theological depth. Following Bonne's death, the manuscript passed to her son Charles V of France and entered the royal library of the Louvre; it is now at The Cloisters, Metropolitan Museum of Art, New York (acc. no. 69.86).
Book of Hours of the Bohemian Queen (Unknown Bohemian Royal Woman)
Horae Beatae Mariae Virginis (Bohemian court)
Pembroke College Oxford MS 20 is a Bohemian Book of Hours created at the beginning of the fifteenth century, containing extremely fine Bohemian illuminations characteristic of the Prague court style flourishing under Wenceslas IV. The manuscript is attested as having belonged to 'the Queen of Bohemia', but no secure identification of the specific Luxembourg-Bohemia queen patron — among candidates including Johanna of Bavaria and Sophia of Bavaria — has been established in published scholarship. It was loaned to Prague in 2015 for the Jan Hus commemoration exhibition as a prestige royal devotional manuscript. Its contents follow the standard Book of Hours structure: the Little Office of the Virgin, the Seven Penitential Psalms, the Office of the Dead, and suffrages to local Bohemian saints.