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Otto I (c. 1128 – July 8, 1184) was the second Margrave of Brandenburg, from 1170 until his death. ==Life== Otto I was born into the House of Ascania as the eldest son of Albert I ("Albert the Bear"), who founded the Margraviate of Brandenburg in 1157, and his wife Sophie of Winzenburg. He had three sisters and six brothers, the best known of whom were Prince-Archbishop Siegfried of Bremen, and Count Bernhard of Anhalt, later Duke of Saxony. Otto's year of birth is traditionally recorded as 1128, but recent historians have cast some doubts on the date. Pribislav of the Havolanes is known to have served as Otto's godfather and given the lands of Zauche bordering the Ascanian possessions as a gift upon the occasion; Partenheimer (2003) dates that event to 1123 or 1125. Around 1148, Otto married Judith of the Piast dynasty, sister of the Dukes of Poland Boleslaw IV and Mieszko III. Arrangements for the marriage were agreed upon during the Wendic Crusade (one of the Northern Crusades) in a meeting of January 6, 1148, in which Archbishop Friedrich of Wettin participated besides Otto and the two Polish dukes. According to Partenheimer (2003), the marriage was contracted in connection with the Ascanian efforts to support the Piast dynasty in opposition to King Conrad, who supported Wladyslaw II as legal ruler of Poland. After Judith's death in 1175, Otto married Ada of Holland in 1176, daughter of Floris III, Count of Holland. Otto had two sons from the first marriage, Otto and Heinrich, and a third son from the second marriage, Albert: * Otto II became his successor as Margrave of Brandenburg at Otto I's death in 1184 * Heinrich became Count of Gardelegen * Albert II became Margrave of Brandenburg after the death of his brother Otto II in 1205 Otto was buried in the Lehnin Abbey, which he had helped build. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Otto I, Margrave of Brandenburg」の詳細全文を読む スポンサード リンク
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