supporter in the Hussite Wars. Late Albert's Ascanian relative Duke Eric V of Saxe-Lauenburg protested in vain. Frederick, now one of the seven Prince-electors, was a member of the House of Wettin, which since 1089 had ruled over the adjacent Margraviate of Meissen up the Elbe river, established under Emperor Otto I in 965, and since 1242 also over the Landgraviate of Thuringia. Thus, in 1423, Saxe-Wittenberg, the Margraviate of Meissen and Thuringia were united under one ruler, and the unified territory. gradually received the name of (Upper) Saxony (or simply Saxony). Partitions of Saxony under Wettin rule Table of rulers Kingdom of Saxony The Holy Roman Empire came to an end in 1806. The Elector of Saxony, allied to Napoleon I, anticipated its dissolution by becoming the ruler of an independent Kingdom of Saxony in 1806. Heads of the House of Wettin since 1918 The lineage of the House of Wettin continues, although the family no longer exercises any official role. For heads of government of Saxony since 1918, see List of Ministers-President of Saxony. For heads of state, see List of presidents of Germany. King Frederick Augustus III, 1918–1932. Margrave Friedrich Christian, 1932–1968. Margrave Maria Emanuel, 1968–2012. Margrave Albert, July - October 2012 (disputed). Margrave Alexander, since 2012 (disputed). Margrave Rüdiger, 2012-2022 (disputed). Prince Michael of Saxe-Weimar, since 2012 (disputed (since the death of his own father in 1988, Prince Michael has been the most senior agnate of the House of Wettin). Margrave Daniel, since 2022 (disputed). See also Coat of arms of Saxony History of Saxony References External links House Laws of the Kingdom of Saxony Saxon monarchs Saxony Saxon rulers Saxon dukes