Acting · b. 1810 Pope Leo XIII Biography Head of the Catholic Church from 1878 until his death. Acting Pope Leo XIII and Count Pecci, No. 1 1898 His Holiness Pope Leo XIII 1898 Pope Leo XIII in His Carriage self 1898 Pope Leo XIII Carried through the Vatican Loggia on His Way to the Sistine Chapel Himself 1898 Pope Leo XIII Leaving Carriage and Being Ushered Into Garden, No. 104 Himself 1898 Pope Leo XIII Being Seated Bestowing Blessing Self 1898 Pope Leo XIII Resting on His Way to His Summer Villa 1898 Agent-readable