“About the Seigneurial Annuity and Its Writings. The Castles of the Challant Family in the Aosta Valley (14th-15th Centuries)”. Studi di storia medioevale e di diplomatica - Nuova Serie, no. 2 (February 11, 2020): 243–261. Accessed July 27, 2026. https://test-ojs-unimi-it.archicoop.it/index.php/SSMD/article/view/13000.