Graf Adolf IV., Schaumburg2024-11-121239-12-311239-12-311980-12-11https://urkundenrepositorium.uni-marburg.de/handle/lba/3714zu 09:ResteCC-By 4.0 Internationalhttps://creativecommons.org/licenses/by/4.0/Schaumburg, Graf Adolf IV. von an Rinteln, Kloster - 1239-12-311983-05-17