Rudolf I ( c. 1284 -- 12 March 1356 ) was Duke of Saxe - Wittenberg from 1298 until his death .
Rudolf I ( c. 1284 -- 12 March 1356 ) is a member of the House of Ascania .
Rudolf I ( c. 1284 -- 12 March 1356 ) , a member of the House of Ascania , was Duke of Saxe - Wittenberg from 1298 until his death .