One of the most powerful Holy Roman Empire electorates; centre of the Protestant Reformation under the Wettin dynasty, ruled by Luther's patron Frederick the Wise.
Transformed into the Kingdom of Saxony on 20 December 1806 when Elector Frederick Augustus III became King Frederick Augustus I after Saxony concluded the Treaty of Poznań with Napoleon and joined the Confederation of the Rhine following the Holy Roman Empire's dissolution.
The atlas holds 4 border frames for Electorate of Saxony — the shape you scrub through changes in 1356 · 1436 · 1541 · 1570.
Comprehensive treatment of the Holy Roman Empire including the Electorate of Saxony and the Reformation; Oxford History of Early Modern Europe series; confirmed via Goodreads.