Ingrian War
1610 CE.
Shown on the map at 59.633°, 29.300°.
The Ingrian War (Swedish: Ingermanländska kriget) was a conflict fought between the Swedish Empire and the Tsardom of Russia which lasted between 1610 and 1617. It can be seen as part of Russia's Time of Troubles, and is mainly remembered for the attempt to put a Swedish duke on the Russian throne. It ended with a large Swedish territorial gain (including Ingria) in the Treaty of Stolbovo, which laid an important foundation to Sweden's Age of Greatness.
Text from the Wikipedia article Ingrian War, licensed CC BY-SA 4.0.