When Was Mary's Queenship Recognized?
How and when was Mary recognized as queen of heaven and earth?
Mary’s queenship is rooted in both Scripture and Tradition, particularly in her being the Mother of God, as Pope Pius XII reaffirmed. In addition, in the Old Covenant, which prefigures the New Covenant, it was the mother of the king of Israel who served as queen mother, not the king’s wife. Mary fulfills that role as the queen mother of the King of Kings, Jesus. Mary has also been long been understood to be the woman in Revelation 12 crowned with twelve stars, which symbolize the new Israel, for she is the mother of the Church too.
For more on this topic, see Tim Staples's book Behold Your Mother: A Biblical and Historical Defense of the Marian Doctrines, which is also available in digital form.