St. Louise de Marillac (1591-1660) was a friend and collaborator of St. Vincent de Paul. Together they co- founded the Daughters of Charity. They organized hospitals for the sick poor, asylums for the orphaned, workshops for the unemployed, championed literacy for the uneducated and established standards for local charities. Louise was a wife, mother, teacher, nurse, social worker and religious foundress.
Louise de Marillac was beatified by Pope Benedict XV in 1920 and canonized by Pope Pius XI in 1934. Pope John XXIII named Louise the Patron of all Christian Social Workers in 1960. In 2016, her feast day was changed to May 9, the anniversary of her beatification.
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