Sweden conquers approximately half of the Holy…
1540 CE to 1683 CE
Gustav Adolphus plans to become the new Holy Roman Emperor, ruling over a united Scandinavia and the Holy Roman states, but he dies at the Battle of Lützen in 1632.
After the Battle of Nördlingen, Sweden's only significant military defeat of the war, pro-Swedish sentiment among the German states fades.
These German provinces exclude themselves from Swedish power one by one, leaving Sweden with only a few northern German territories: Swedish Pomerania, Bremen-Verden and the port city of Wismar.