ALTAR OF Our Lady.—From the beginning of Christianity special veneration was paid to the Mother of God, which in the language of theology is called hyperdulia, to distinguish the honour rendered to her from that given to the other saints. It is not strange, therefore, that after the main or principal altar, the most prominent is that dedicated in a special manner to the Mother of God; and to indicate this special preference, this altar is usually placed in the most prominent position in the church, 1. e. at the right (gospel) side of the main altar. In general it signifies any altar of which the Blessed Virgin is the titular.
The Catholic Encyclopedia
Altar of Our Lady
1 section
Charles G. Herbermann and others (editors)
Transcribed from a dated scan; artifacts may remain. Edition notes
Trans. None. Written in English by the contributors whose signatures close each article., The Catholic Encyclopedia, An International Work of Reference on the Constitution, Doctrine, Discipline, and History of the Catholic Church, in fifteen volumes, 1907. Public domain.