This is the oldest known footage of a Pope in existence. This film of Pope Leo XIII was created in 1896. The audio portion is the oldest known audio recording of Pope, also of Pope Leo XIII recorded in 1903. The audio is Pope Leo XIII chanting the Ave Maria in Latin.
Pope Leo XIII (2 March 1810 – 20 July 1903), born Count Vincenzo Gioacchino Raffaele Luigi Pecci, was the 256th Pope of the Roman Catholic Church, reigning from 1878 to 1903 in succession to Pope Pius IX.
Reigning until the age of 93, he was the oldest pope, and had the third longest pontificate, behind his immediate predecessor Pius IX and John Paul II. He is known for intellectualism, the development of social teachings with his encyclical Rerum Novarum and his attempts to define the position of the Church with regard to modern thinking.