House of Wettin, who united the Meissen and the Saxon lands of Wittenberg under his rule. He assumed the electoral title and thereby transferred the state of Saxony up the Elbe river to his Meissen residence. His lands were also called "Upper Saxony" (see: Upper Saxon Circle) to distinguish them from the territory of the medieval stem duchy, the later Lower Saxony. The territory of former Saxe-Wittenberg became known as the Kurkreis ("Electoral District"). By the division of the Saxon Electorate according to the 1485 Treaty of Leipzig, the Wittenberg lands including the electoral dignity fell to Ernest of Wettin. Notes Duchy of Saxony Saxe-Wittenberg 1290s establishments in the Holy Roman Empire 1296 establishments in Europe 1350s disestablishments in the Holy Roman Empire 1356 disestablishments in Europe Duchies of the Holy Roman Empire