This bar chart shows the age of the pope at the end of their service for the ten oldest popes to serve since 1600. Pope Leo XIII, who was installed in 1878, was 93.3 years old. Pope Francis, installed in 2013, was 88.3. Pope Clement XII, installed in 1730, was 87.8 and Pope Clement X, installed in 1670 was 86. Pope Benedict XVI (installed in 2005) was 85.8.