"Papal indulgences for the building of St. Peter's [Church] are circulating under your most distinguished name. I do not bring accusations against the outcries of the preachers, which I have not heard, so much as I grieve over the wholly false impressions which the people have conceived from [the indulgences]. The unhappy souls believe that if they have purchased letters of indulgence they are sure of their salvation." What does it mean?

If this is a true or false question the answer is true.

In 911, a group of vikings lead by rollo besieged paris and chartres. after a victory near chartres on 26 august, charles decided to negotiate with rollo. the talks were led by hervé, the archbishop of reims. this resulted in the treaty of saint-clair-sur-epte, which granted rollo and his soldiers all the land between the river epte and the sea. it also granted him brittany, "for his livelihood". at the time, brittany was an independent land which france had not been able to conquer. in exchange, rollo promised the king his loyalty and military assistance when needed. also rollo also agreed to be baptised and to marry gisela, the king's daughter. the territory given rollo is about the same as upper normandy.