Pius XI: Ingravescentibus Malis
- On the Rosary. Encyclical promulgated on 29 September 1937.
- http://www.newadvent.org/library/docs_pi11im.htm

Paul VI: Signum Magnum
- Encyclical promulgated 13 May, 1967. About the spiritual motherhood of Mary, urges imitation of her virtues.
- http://www.newadvent.org/library/docs_pa06sm.htm

Leo XIII: Vi è Ben Noto
- Addressed to the bishops of Italy. Begs them to encourage praying the rosary for the pope in his hour of need. Encyclical promulgated 20 September, 1887.
- http://www.vatican.va/holy_father/leo_xiii/encyclicals/documents/hf_l-xiii_enc_20091887_vi-e-ben-noto_en.html

Leo XIII: Iucunda Semper Expectatione
- On the Rosary. Also touches on Mary's role in pointing people to God. Encyclical promulgated 8 September, 1894.
- http://www.vatican.va/holy_father/leo_xiii/encyclicals/documents/hf_l-xiii_enc_08091894_iucunda-semper-expectatione_en.html

Paul VI: Christi Matri
- On Prayers to Mary for Peace. Encyclical promulgated 15 September, 1966.
- http://www.papalencyclicals.net/Paul06/p6christ.htm

Paul VI: Mense Maio
- On the Occasion of the First of May. Encyclical promulgated 30 April, 1965.
- http://www.papalencyclicals.net/Paul06/p6month.htm

Pius XII: Munificentissimus Deus
- Apostolic Constitution, November 1, 1950, on proclaiming the dogma of the Assumption.
- http://www.ewtn.com/library/PAPALDOC/P12MUNIF.HTM

Pius XI: Lux Veritatis
- Encyclical on the Council of Ephesus, which condemned the Nestorian heresy. Promulgated 25 December, 1931.
- http://www.ewtn.com/library/ENCYC/P11VERIT.HTM

John Paul II: Redemptoris Mater
- Encyclical "Mother of the Redeemer," promulgated 25 March, 1987. A reflection on the role of the Blessed Virgin Mary in the life of the Church. 166K.
- http://www.cin.org/jp2ency/jp2mot.html

Pius XII: Fulgens Corona
- Proclaiming a Marian Year to commemorate the centenary of the definition of the dogma of the Immaculate Conception. Encyclical promulgated on 8 September 1953.
- http://www.catholic-forum.com/saints/bvm00016.htm

Pius XII: Deiparae Virginis Mariae
- Encyclical promulgated on 1 May 1946. Asks the bishops to pray about whether the Assumption of Mary should be defined as dogma.
- http://www.catholic-forum.com/saints/bvm00020.htm

Pius XII: Ad Caeli Reginam
- On Proclaiming the Queenship of Mary. Encyclical promulgated on 11 October 1954.
- http://www.catholic-forum.com/saints/bvm00017.htm