W/2/ Brandenburg, Markgraf Otto III. vonJohann I., Brandenburg, MarkgrafOtto III., Brandenburg, Markgraf2024-01-022024-01-021227-08-0509.06.19801227-08-052982https://urkundenrepositorium.uni-marburg.de/handle/lba/5678imagehttps://creativecommons.org/licenses/by/4.0/Brandenburg, Markgraf Johann I. von; Brandenburg, Markgraf Otto III. von an Johanniter - 5.8.122707.08.1981