May 13
Our Lady of Fatima is invoked as patron of peace. The Optional Memorial of Our Lady of Fatima commemorates the apparitions of the Blessed Virgin Mary to three shepherd children, Lucia dos Santos and her cousins Francisco and Jacinta Marto, at the Cova da Iria in the parish of Fatima, Portugal. The apparitions occurred on six occasions on the thirteenth day of each month from May 13 to October 13, 1917, with a brief substitution of the August date.Mary identified herself to the children as the Lady of the Rosary, calling them to the daily Rosary, to penance for the conversion of sinners, and to consecration of the world to her Immaculate Heart. Sources: https://www.vatican.va/content/francesco/en/homilies/2017/documents/papa-francesco_20170513_omelia-pellegrinaggio-fatima.html.