Salve Regina (Hail Holy Queen)

From the 14th century down to today this prayer has been a part of Compline for the Latin Rite. Traditionally this antiphon is recited at Compline from Trinity Sunday until Advent. It is also used in the ending prayers of the Rosary. A partial indulgence is granted to the faithful who devoutly recite this prayer.

HAIL holy Queen,
Mother of mercy, our life, our sweetness, and our hope. To thee do we cry, poor banished children of Eve. To thee do we send up our sighs, mourning and weeping in this valley of tears. Turn then, most gracious Advocate, thine eyes of mercy toward us. And after this our exile show unto us the blessed fruit of thy womb, Jesus.
O clement, O loving, O sweet Virgin Mary.
V. Pray for us, O Holy Mother of God.
R. That we may be made worthy of the promises of Christ.
Let us pray
Almighty, everlasting God, who by the cooperation of the Holy Spirit, didst prepare the body and soul of the glorious Virgin-Mother Mary to become a worthy dwelling for Thy Son; grant that we who rejoice in her commemoration may, by her loving intercession, be delivered from present evils and from the everlasting death. Amen.

SALVE, Regina,
mater misericordiae: vita, dulcedo, et spes nostra, salve. Ad te clamamus exsules filii Hevae. Ad te suspiramus, gementes et flentes in hac lacrimarum valle. Eia, ergo, advocata nostra, illos tuos misericordes oculos ad nos converte. Et Iesum, benedictum fructum ventris tui, nobis post hoc exsilium ostende.
O clemens, O pia, O dulcis Virgo Maria.
V. Ora pro nobis, sancta Dei Genetrix.
R. Ut digni efficiamur promissionibus Christi.
Oremus
Omnipotens sempiterne Deus, qui gloriosae Virginis Matris Mariae corpus et animam, ut dignum Filii tui habitaculum effici mereretur, Spiritu Sancto cooperante, praeparasti: da, ut cuius commemoratione laeta-mur; eius pia intercessione, ab instantibus malis, et a morte perpetua liberemur. Per eumdem Christum Dominum nostrum. Amen.

From the Roman Breviary.