Mary, the mother of Jesus, was identified with the title of “Queen” at least as early as the 13th century. On October 11, 1954, during the Marian year that marked the centenary of the proclamation of the dogma of the Immaculate Conception of Mary, Pope Pius XII established the feast of the Queenship of Mary on May 31. After the Second Vatican Council, the feast (classified as an obligatory memorial) was changed to August 22 so that it would follow the Feast of the Assumption on August 15. Discuss
Source: The Free Dictionary