|Madonna with Child and Saint Dominic in the Basilica of Saint Dominic in Bologna, Italy|
The title "Mother of Mercy" first appeared in writing c. 942 in the life of St. Odo, the second abbot of Cluny. Odo had been converted as a young man when, on a Christmas eve, he prayed, "O Lady, Mother of Mercy, on this night you gave a Savior to the world; be to me a worthy intercessor." After this the title "Mother of Mercy became increasingly popular and a deeper sense of Mary’s spiritual motherhood developed. As a result the words of the hymn “Salve Regina” were changed from "Salve Regina Misericordiae" to "Salve Regina, Mater Misericordiae."