Congress of Laibach
The Congress of Laibach was a conference of the allied sovereigns or their representatives , held in 1821 as part of the Congress System ( the forerunner of the Concert of Europe ) which was the decided attempt of the five Great Powers to settle international problems after the Napoleonic Wars through discussion and collective weight rather than on the battlefield . 
<triplet> Congress of Laibach <subj> 1821 <obj> start time