Pope Leon XIII - Pope Leo XIII (March 2, 1810 - July 20, 1903), born Vincenzo Gioacchino Raffaele Luigi Pecci, was the 256th Pope of the Roman Catholic Church, reigning from 1878 to 1903, succeeding Pope Pius IX. Reigning until the age of 93, he was the oldest pope, and had the third longest pontificate, behind his predecessor and John Paul II. He is known as the "Pope of the Working Man". ?007 TopFoto -