May 13, 1920: Canonization by Pius XI. of Saint Margaret Mary (mystical nun of the monastery of the Visitation of Paray-le-Monial, confidante of the Sacred Heart of Jesus).
May 13, 1933: Birth in Heaven of Venerable Sister Marie-Marguerite Bögner at the Visitation of Erd, at the age of 27. She was the 1era visitandine of Hungary.
May 15, 1956: Pope Pius XII. publishes Hauriteis Aquas, an encyclical letter on the Sacred Heart of Our Lord.
May 31, 1992: Canonization of St. Claude la Colombière (Jesuit, first great propagator of devotion to the Sacred Heart of Jesus and spiritual director of St. Margaret Mary) by St. John Paul II.
May 27: Feast of Our Lady of the Sacred Heart, heavenly patroness of the Guard of Honour On this day the Apostolic Penitentiary grants plenary indulgence to the members of the Guard of Honour