In Nomine Domini (Paperback) (ISBN-13: 9798869210067)

In nomine Domini is a papal bull written by Pope Nicholas II. The bull was issued on 13 April 1059 and caused major reforms in the system of papal election, most notably establishing the cardinal-bishops as the sole electors of the pope, with the consent of minor clergy. It also start to help define the relationship that existed between the bishops of Rome and the Holy Roman Emperor.