High Quality Content by WIKIPEDIA articles! The Duchy of Saxe-Wittenberg was a medieval duchy of the Holy Roman Empire, which emerged after the dissolution of the stem duchy of Saxony. It is the precursor of the Saxon Electorate.Count Otto of Ballenstedt, ancestor of the House of Ascania, had already held the title of a Duke of Saxony in 1122. In 1134 his son Albert the Bear at first received the Saxon Northern March from Emperor Lothair III of Supplinburg. When in 1138 Lothair's successor Conrad III of Germany had deprived his Welf rival Henry the Proud of the Saxonian Duchy in 1138 he gave it to Albert, who however could not prevail against the local nobility and in 1142 finally had to renounce in favour of Henry the Proud's son Henry the Lion. Albert later took part in the Wendish Crusade of 1147 and in 1157 established the Margraviate of Brandenburg. He died in 1170.

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