The Duchy of Saxe-Lauenburg, was a reichsfrei duchy that existed from 1296 to 1803 and again from 1814 to 1876 in the extreme southeast region of what is now Schleswig-Holstein. Its territorial center was in the modern district of Herzogtum Lauenburg and originally its eponymous capital was Lauenburg upon Elbe, though the capital moved to Ratzeburg in 1619.
Bergedorf Castle in Bergedorf, former seat of the Lauenburg Elder Line
The Treaty of Perleberg, 1420
Lauenburg Castle in Lauenburg upon Elbe, seat of the Lauenburg Younger Line by the end of the 16th century, until its destruction in 1616
View of Ratzeburg, 1590, with the castle in the foreground
The Duchy of Saxe-Wittenberg was a medieval duchy of the Holy Roman Empire centered at Wittenberg, which emerged after the dissolution of the stem duchy of Saxony. The Ascanian dukes prevailed in obtaining the Saxon electoral dignity until their duchy was finally elevated to the Electorate of Saxony by the Golden Bull of 1356.
Duchy of Saxe-Wittenberg (green, centred on the town of Wittenberg)
Saxon Kurkreis, after 1554