Is prussia a dominant power of eastern Europe?

Yes, Prussia was a dominant power of eastern Europe in the 17th and 18th centuries. It started off as a small military force but eventually managed to establish dominance after it took parts of land away from Sweden under the Treaty of Stockholm. Its power then began to rise, which led to many battles between them and neighboring countries throughout those two centuries. In 1701, King Freidrich I declared the Kingdom of Prussia, marking the formal end of Brandenburg-Prussia and becoming a dominant player in Central and Eastern Europe.