brothers Albert III, Eric I and John II and Saxe-Wittenberg (), ruled by Albert II took place before 20 September 1296. The Vierlande, Sadelbande (Land of Lauenburg), the Land of Ratzeburg, the Land of Darzing (today's Amt Neuhaus), and the Land of Hadeln are mentioned as the separate territory of the brothers. Duke Albert II received the Wittenberg lands around the eponymous city, Brehna and Gommern. He thus became the founder of the Ascanian line of Saxe-Wittenberg. When Rudolph succeeded his father Albert II as Duke of Saxe-Wittenberg in 1298, he and the Dukes of Saxe-Lauenburg rivallingly claimed the Saxon electoral privilege. Upon the assassination of his brother-in-law King Albert I in 1308, he voted for Count Henry of Luxembourg. In 1314 both duchies participated in the double election of the German kings, Frederick III, the Fair from the House of Habsburg and his Wittelsbach cousin Louis IV, the Bavarian. Louis received five of the seven votes, to wit Archbishop-Elector Baldwin of Trier, the legitimate King John of Bohemia, Duke John II of Saxe-Lauenburg, claiming the Saxon prince-electoral power, Archbishop Peter of Mainz, and Albert's Ascanian cousin Margrave Waldemar of Brandenburg. Frederick the Fair received in the same election four of the seven votes, with the deposed King Henry of Bohemia, illegitimately assuming electoral power, Archbishop Henry II of Cologne, Louis' brother Count Rudolph I of the Palatinate, and Duke Rudolph I of Saxe-Wittenberg, equally exercising the Saxon electoral dignity. However, only Louis the Bavarian, co-elected with Saxe-Lauenburg's vote, finally asserted himself as emperor after the 1322 Battle of Mühldorf by the Treaty of Trausnitz on March 13, 1325. As an obvious opponent, Duke Rudolph I failed with his claims to Brandenburg after the line of his Ascanian cousins became extinct in 1319: King Louis IV seized the margraviate and enfeoffed his son Louis V instead. Rudolph I in turn allied with the rivaling House of Luxembourg. He supported Count Charles IV of Luxembourg as anti-king to Louis IV and on that account exclusively received the Saxon electoral dignity with the Golden Bull of 1356, thus slighting Saxe-Lauenburg. Saxe-Wittenberg thereupon came to be known as the Electorate of Saxony (Kursachsen). When the Ascanian line in the Electorate of Saxony died out in 1422, the Ascanian Duke Eric V of Saxe-Lauenburg failed to assert his succession in Wittenberg. King Sigismund granted the Electorate to Margrave Frederick IV of Meissen from the