Question: What was the faction called that supported the Pope and the Holy Roman Emperor in the Italian city-states and that Alberico da Romano was a statesman of in the 1100's?
Sentence (from "Antipope Clement III"): Guibert or Wibert of Ravenna ( 1029 – 8 September 1100) was an Italian prelate, archbishop of Ravenna, who was elected pope in 1080 in opposition to Pope Gregory VII.
Relevant evidence: No