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14 de jun. de 2024 · 20 October 1139 – 1142. son of Otto the Rich and grandson of Magnus Billung; also Margrave of Brandenburg. Welf Dynasty. Henry the Lion. 1142–1180. son of Henry the Proud and grandson of Lothair III; also Duke of Bavaria. With the removal of the Welfs in 1180, the Duchy of Saxony was sharply reduced in territory.
