A pope of this name organized a multinational crushed by Humphrey of Hauteville and Robert Guiscard at the battle of Civitate.
A pope of this name organized a multinational crushed by Humphrey of Hauteville and Robert Guiscard at the battle of Civitate. A later pope of this name liked parading around on his pet white elephant Hanno. This papal name was shared by a man who invoked the Donation of Constantine in a letter to the Patriarch of Constantinople, touching off the East-West Schism, and a pontiff who discussed the plight of the working class in the (*) 1891 encyclical Rerum Novarum. This name's tenth papal holder, who was once named Giovanni Medici, issued Exsurge Domine in response to the 95 Theses, while the third such pope crowned Charlemagne "King of the Romans." For 10 points, give this papal name whose first possessor persuaded Attila to spare Italy.
A pope of this name organized a multinational crushed by Humphrey of Hauteville and Robert Guiscard at the battle of Civitate.
Leo