Mariology = Popes Coat of Arms
Theology = the study of Jesus father?
Dominiology = the study of the Lord (L. Domini)

There exist a variety of Christian views on Mary ranging from the focus on Marian veneration in Roman Catholic Mariology to Protestant objections, with Anglican Marian theology in between. As a field of theology, in recent centuries the most substantial developments in Mariology (and the founding of specific centers devoted to its study) have taken place within Roman Catholic Mariology. Eastern Orthodox concepts of Mary have been mostly expressed in liturgy and are not subject to a central dogmatic teaching office.

Key prayers & devotions
Angelus • Hail Mary • Rosary

SOURCE Joseph Ratzinger Introduction to Christianity, 1968

Angelus Domini Latin text

V. Angelus Domini nuntiavit Mariæ.
R. Et concepit de Spiritu Sancto.

Ave Maria, gratia plena, Dominus tecum. Benedicta tu in mulieribus, et benedictus fructus ventris tui, Iesus.
Sancta Maria, Mater Dei, ora pro nobis peccatoribus, nunc et in hora mortis nostræ. Amen.

V. Ecce Ancilla Domini.
R. Fiat mihi secundum Verbum tuum.

Ave Maria...

V. Et Verbum caro factum est.
R. Et habitavit in nobis.

Ave Maria...

V. Ora pro nobis, Sancta Dei Genetrix.
R. Ut digni efficiamur promissionibus Christi.

Oremus: Gratiam tuam quæsumus, Domine, mentibus nostris infunde; ut qui, angelo nuntiante, Christi Filii tui Incarnationem cognovimus, per passionem eius et crucem, ad resurrectionis gloriam perducamur.
Per eumdem Christum Dominum nostrum. Amen.

English text

V. The angel of the Lord announced unto Mary.
R. And she conceived by the Holy Spirit.

Hail Mary, full of grace, the Lord is with you. Blessed are you among women, and blessed is the fruit of your womb, Jesus.
Holy Mary, Mother of God, pray for us sinners, now and at the hour of our death. Amen.

V. Behold the handmaid of the Lord.
R. Be it unto me according to your Word.

Hail Mary...

V. And the Word was made flesh.
R. And dwelt among us.

Hail 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: We beseech you, O Lord, pour your grace into our hearts, that as we have known the incarnation of your Son Jesus Christ by the message of an angel, so by his cross and passion we may be brought to the glory of his resurrection; through the same Christ our Lord. Amen.

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Áve María

Áve María, grátia pléna, Dóminus técum. Benedícta tu in muliéribus, et benedíctus frúctus véntris túi, Iésus.^[10]

Sáncta María, Máter Déi, óra pro nóbis peccatóribus, nunc et in hóra mórtis nóstrae. Ámen.

Hail Mary, full of grace, the Lord is with thee; blessed art thou among women, and blessed is the fruit of thy womb, Jesus. Holy Mary, Mother of God, pray for us sinners, now and at the hour of our death. Amen