A constitutional amendment..
Hope this helps
Well, structurally it would be similar with the Pope being the head of the Church, like a King. Then respectively you have the archbishop who rules an ecclesiastical province. Then the bishops rule the diocese that make up the province. In that way, the line of power is similar with King, nobles and peasants.
The anti federalists insisted that they must have a bill of rights because they were worried whether they would end up being one all powerful person, the bill of rights stateted that these certain rights MUST be allowed for everyone.
Hoep this helped!!