Saint Nicholas I (c. 825 - 867), known as Saint Nicholas the Great, was Pope from 858 to 867. Detail from painting by Raphael in the National Gallery, London, circa 860. (Photo by Hulton Archive/Getty Images)
Popes throughout history
A selection of the 265 popes who have served as head of the Catholic Church, from the recently retired Benedict XVI all the way back to St. Peter.