Napoleon Bonaparte

As a result of conquests, by 1812 France had expanded its territory to 750,000 square kilometers.

An excerpt from the article 32 facts about Napoleon Bonaparte

To its territory, it added Belgium, the Netherlands, the German provinces on the North Sea, the Illyrian Provinces in the Balkans, and a large part of the Italian territories, including Rome. In addition, the kingdoms of Spain, Italy, and Naples, the Union of the Rhine, the Swiss Republic of Helvetia, and the Duchy of Warsaw remained in direct dependence on France.