The "Salve Regina" (ˌsælveɪ_rəˈdʒiːnə , ˈsalve reˈdʒina; meaning 'Hail Queen'), also known as the "Hail Holy Queen", is a Marian hymn and one of four Marian antiphons sung at different seasons within the Christian liturgical calendar of the Catholic Church. The Salve Regina is traditionally sung at Compline in the time from the Saturday before Trinity Sunday until the Friday before the first Sunday of Advent. The Hail Holy Queen is also the final prayer of the Rosary.
The work was composed during the Middle Ages and originally appeared in Latin, the prevalent language of Western Christianity until modern times. Though traditionally ascribed to the eleventh-century German monk Hermann of Reichenau, it is regarded as anonymous by most musicologists. Traditionally it has been sung in Latin, though many translations exist. These are often used as spoken prayers.
Marian antiphons have been sung, since the thirteenth century, at the close of Compline, the last Office of the day. Peter Canisius (d. 1597) noted that one praises God in Mary when one turns to her in song. Liturgically, the Salve Regina is the best known of four prescribed Marian Anthems recited after Compline, and, in some uses, after Lauds or other Hours. Its use after Compline is likely traceable to the monastic practice of intoning it in chapel and chanting it on the way to sleeping quarters.
It was set down in its current form at the Abbey of Cluny in the 12th century, where it was used as a processional hymn on Marian feasts. The Cistercians chanted the Salve Regina daily from 1218. It was popular at medieval universities as an evening song, and according to Fr. Juniper Carol, it came to be part of the ritual for the blessing of a ship. While the anthem figured largely in liturgical and in general popular Catholic devotion, it was especially dear to sailors.
In the 18th century, the Salve Regina served as the outline for the classic Roman Catholic Mariology book The Glories of Mary by Saint Alphonsus Liguori.