CONFEDERATION OF THE RHINE
1806 - 1813

The Confederation of the Rhine was the Confédération du Rhin in French and the Rheinbund in German.

Napoleon promised the small German states riches, glory, and territorial expansion if they would aid him in his fight against Prussia and Austria.

Originally, sixteen states joined the Confederation of the Rhine and left the Holy Roman Empire, which collapsed on August 6, 1806. More states joined later.

And here are the maps

Map of Central Europe with the boundaries of August 6, 1806

Map of Germany and Italy in 1806