Penitential Psalms and Litany of Saints (as compiled in Ottonian royal use)
Psalmi poenitentiales cum litania sanctorum
Miserere mei, Deus, secundum magnam misericordiam tuam; et secundum multitudinem miserationum tuarum, dele iniquitatem meam.
Our renderingHave mercy on me, O God, according to your great mercy; and according to the abundance of your compassion, blot out my iniquity.
What it is
The seven Penitential Psalms (Psalms 6, 32, 38, 51, 102, 130, 143) combined with the Litany of Saints form the core private prayer structure documented directly in the Prayerbook of Otto III (BSB Clm 30111), where Archbishop Bernward of Hildesheim employed them in the young emperor's spiritual formation. This pairing — penitential self-examination before God followed by intercession from the whole company of heaven — was used by Christian teachers as early as Origen and Augustine, ordered for Lenten use by Pope Innocent III, and embedded in the Use of Sarum and successive Books of Common Prayer. Its place in the weekly devotional rhythm of the Salian and Hohenstaufen courts via their breviary traditions makes it the single most broadly transmitted prayer form in this dataset, extending across all dynasties and centuries. The sequence remains structurally unchanged in the Roman Rite today.
Why it still matters
The seven Penitential Psalms are prescribed in the Roman Rite on Ash Wednesday and across Holy Week and are freely available in any psalter; a Christian today can take up exactly the prayer form that shaped an emperor's conscience, requiring no manuscript access whatsoever.
Kept alongside
De diligendo Deo (On Loving God)
De diligendo Deo
Bernard of Clairvaux's treatise setting out four ascending degrees of love for God, dedicated to Haimeric, Cardinal Chancellor of the Roman Church and among the most powerful ecclesiastical figures of the 12th century. Composed between approximately 1132 and 1135, it was the first work in the Latin West to make the love of God its single explicit subject. Bernard's connections to the French royal court were direct — Louis VII, Queen Eleanor, and the princes of France prostrated themselves before him during Crusade preaching — and the text's elegant theological structure made it a model for lay noble reading. An anonymous French vernacular translation existed already by the late 12th century.
Sermones super Cantica Canticorum (Sermons on the Song of Songs)
Sermones super Cantica Canticorum
Bernard's eighty-six sermons on the Song of Songs, begun c. 1135 and left unfinished at his death in 1153, represent the summit of 12th-century mystical exegesis and became one of the most widely copied Latin texts of the medieval period. While addressed formally to his monks at Clairvaux, the sermons were circulated and read far beyond the cloister: Bernard was the central spiritual authority for royal and aristocratic Europe alike, and the courts of France, England, and the Empire received and debated his writings. The sermons teach the soul's ascent to union with the divine Bridegroom through humility, self-knowledge, and love, using the language of bridal mysticism in a way that resonated as much with court culture as with monastic life.
Prayerbook of Otto III (Gebetbuch Ottos III.)
Gebetbuch Ottos III.
One of only two royal prayer books from the early Middle Ages to survive intact, made for the personal devotion of the boy-king Otto III and probably commissioned by his mother Empress Theophanu and Archbishop Willigis of Mainz between 983 and 996. Written entirely in gold ink on purple-stained parchment, it contains the seven Penitential Psalms, a litany of saints, morning prayers, and prayers for entering and leaving church. Its miniatures depict the young prince praying between Saints Peter and Paul and kneeling before the enthroned Christ — a programmatic image of what a Christian emperor ought to be. Scholars have identified the book as functioning simultaneously as a personal devotional and a mirror for princes, embedding a monastic ideal of sovereignty into the young ruler's daily prayer.