Answer:
The congress resolve the division of the french empire by the ministers of Austria, Prussia, Russia, and Great Britain assembled agreed, that the “four” should be those to decide the future of all the conquered territories. They were then to communicate their decisions to France and Spain. The full congress was to be summoned only when all was ready.
The Final Act of the Congress of Vienna comprised all the agreements in one great instrument. It was signed by the “eight” all the other powers subsequently acceded to it. As a result, the political boundaries laid down by the Congress of Vienna lasted, except for one or two changes, for more than 40 years. The statesmen had successfully worked out the principle of a balance of power.