Christ as redeemer is Lord and King. The Blessed Virgin is Queen, because of the unique manner in which she assisted in our redemption, by giving of her own substance, by freely offering Him for us, by her singular desire and petition for, and active interest. Mary was chosen Mother of Christ so she might help fulfill God's plan in the redemption of humankind; The Catholic Church from the earliest times venerated the Queen of Heaven, according to Pius XII: The Queenship of Mary is commemorated in the last of the Glorious Mysteries of the Holy Rosary—the Coronation of the Virgin as Queen of Heaven and Earth. Parishes and private groups often process and crown an image of Mary with flowers. This often is referred to as a "May Crowning". This rite may be done on solemnities and feasts of the Blessed Virgin Mary, or other festive days, and offers the Church a chance to reflect on Mary’s role in the history of salvation. The Virgin has been called "Queen of France" since 1638 when, partly in thanksgiving for a victory over the Huguenots and also in hope of the birth of an heir after years of childless marriage, Louis XIII officially gave her that title. Siena, Tuscany, hails the Virgin as Queen of Siena, and annually observes the race and pageant called the "palio" in her honor. Mary was declared "Queen of Poland" by king John II Casimir during the Lwów Oath in the 17th century. Since then she is believed to save the country miraculously during Deluge, Partitions of Poland, Polish-Soviet War, World War II and the Polish People's Republic. The solemnity of Our Lady Queen of Poland is celebrated on 3 May. Feast of Queenship of Mary Queenship of Mary is a Marian feast day in the liturgical calendar of the Catholic Church, created by Pope Pius XII. On 11 October 1954, the pontiff pronounced the new feast in his encyclical Ad caeli reginam. The feast was celebrated on May 31, the last day of the Marian month. The initial ceremony for this feast involved the crowning of the Salus Populi Romani icon of Mary in Rome by Pius XII as part of a procession in Rome. In 1969, Pope Paul VI moved the feast day to August 22, the former Octave day of the Assumption in order to emphasize the close bond between Mary's queenship and