The liturgical feast of the Blessed Virgin Mary, Queen and Mother was instituted by Pope Pius XII on October 11, 1954, just a few days after he had proclaimed the dogma of The Assumption. The Queenship of Mary is celebrated on August 22.
Mary Queen of Peace, pray for us…
In the history of cities and peoples evangelized by the Christian message there are countless testimonies of public veneration, in some cases, even of the royal institution of the Virgin Mary. But today especially as children of the Church, we renew our devotion to her as Mother and Queen, left us by Jesus. We entrust to her intercession our daily prayer for peace, especially where the absurd logic of violence rages, so that all people will be persuaded that in this world we must help each other as brothers to build a civilization of love. Maria Regina Pacis, ora pro nobis. Pope Benedict XVI, Sunday August 22, 2010
I call you all to build a new world of peace with me through prayer. part Medjugorje message, December 25, 1992