This successor to Anastasius IV placed an interdict on Rome until that city got rid of the problematic Arnold of Brescia, and he was forced to call the Diet of Beascaon after signing the Treaty of Benevento with William I of Sicily.
During his time as a papal legate in Scandinavia, this man established Trondheim as the metropolitan see of Norway. Cardinal Boso wrote his biography and Matthew Paris doubted the authenticity of a papal bull supposedly issued by this man, Laudabiliter. This successor to Anastasius IV placed an interdict on Rome until that city got rid of the problematic Arnold of Brescia, and he was forced to call the Diet of Beascaon after signing the Treaty of Benevento with William I of Sicily. Even though this man renewed the Treaty of Constance, he developed a hostile relationship with Frederick Barbarossa, whom he had earlier crowned as Holy Roman Emperor in 1155. Succeeded by Alexander III and born Nicholas Breakspear, for 10 points, name this only English Pope.
During his time as a papal legate in Scandinavia, this man established Trondheim as the metropolitan see of Norway.
Hadrian IV [or Adrian IV]