The Catholic Encyclopedia
It is found in the St. Alban's Book of the twelfth century; in a Munich manuscript thought by Daniel to be of the thirteenth; in a Sarum Breviary of the fourteenth; and in York and Roman Breviaries of the fifteenth.
Source details
1150 · The Catholic Encyclopedia, "Ave Regina Caelorum"
Checked word-for-word against The Catholic Encyclopedia · 2026-07-19