Queenship of Mary
Encyclical of Pope Pius XII, Ad caeli Reginam, October 11th, 1954
From the documents of ancient Christianity, from the prayers of the liturgy, from the innate religious sense of the Christian people, from works of art, from all sides We gather witnesses which assert that the Virgin Mother of God excels in queenly dignity. And We have set forth the reasons which sacred theology deduces from the treasury of divine faith to confirm the same truth. All these witnesses form a sort of chorus, proclaiming far and wide the supreme queenly honor granted to the Mother of God and man, who is above all created things and "exalted over the choirs of Angels to reign in heaven." Thus it is that after mature and thoughtful consideration We have been persuaded that great benefits would flow to the Church if, like a light that illumines more brightly when placed on its stand, this solidly proved truth were to shine out more clearly for all; and so, by Our Apostolic Authority, we decree and institute the feast of Mary, Queen, which is to be celebrated every year on May 31st throughout the world.