Gassmann, Jürg. “Abbesses and Their Fighting Men: From the Carolingian Capitularies to the Libri Feudorum”. Acta Periodica Duellatorum 10, no. 1 (May 15, 2023): 43–73. Accessed July 22, 2024. https://bop.unibe.ch/apd/article/view/8266.