Calixtus II., Papst2024-11-121122-03-241122-03-241981-05-26https://urkundenrepositorium.uni-marburg.de/handle/lba/2426zu 09: beiliegendhttps://creativecommons.org/licenses/by/4.0/Papst Calixt II. an Zwiefalten, Kloster - 1122-03-241986-01-21