Gregor IX., Papst2024-01-022024-01-021237-08-2817.11.19801237-08-287542https://urkundenrepositorium.uni-marburg.de/handle/lba/11385Archivsignatur: C II 11, Oetenbach Nr.2imageCC-By 4.0 Internationalhttps://creativecommons.org/licenses/by/4.0/Papst Gregor IX. an Oetenbach, Kloster - 28.8.123717.11.1980