O Intemerata
O Intemerata (Incipit: 'O intemerata et in aeternum benedicta')
O Intemerata is the companion prayer to Obsecro Te, appearing as the second of the two great Marian suffrage prayers in almost every royal and noble Book of Hours. Its Book of Hours form addresses the Virgin alone — though an older twin form had addressed both the Virgin and Saint John the Evangelist — invoking Mary as 'immaculate and eternally blessed' and petitioning for her intercession throughout life and at the moment of death. Like Obsecro Te, it was among the first prayers memorised by noble children learning their devotional Latin. The prayer's formal eloquence and theological density made it a favoured text for private meditation as well as voiced petition.