W/2/ Brandenburg, Markgraf Otto III. vonJohann I., Brandenburg, MarkgrafOtto III., Brandenburg, Markgraf2024-01-022024-01-021247-12-3109.06.19801247-12-313000https://urkundenrepositorium.uni-marburg.de/handle/lba/5697imagehttps://creativecommons.org/licenses/by/4.0/Brandenburg, Markgraf Johann I. von; Brandenburg, Markgraf Otto III. von an Lehnin, Kloster - 0.0.124707.08.1981