Ruobertus Wiscardus dux Nordmannorum in servicium sancti Petri post Kal. Maii Romam armata manu invasit, fugatoque Heinrico totam urbem Gregorio papae rebellem penitus expoliavit
Translation :
-
Edition :
I. S. Robinson: Bertholds und Bernolds Chroniken (FSGA 14), Darmstadt, 280-432.
Remark :
long-term consequence: For the related plunder of Rome, refer to: "Robert Guiscard and his army plunder and burn Rome as punishment for the population's rebellion against Pope Gregory VII. and because one of Robert's men had been injured by them."