“…9 The only edition of the charters from both monasteries before 1100 remains the Portugaliae Monumenta Historica (1867-1873); later material is largely unpublished. 20 There are good historiographical surveys available for some regions: Galicia (Pérez Rodríguez, 2010;Portela Silva & Pallares Méndez, 1988;Álvarez García, 2020), Aragón (Laliena Corbera, 2003), and Portugal (Mattoso et al, 2011). How to cite this article: Carvajal Castro, Á., Marques, A. E., Barrett, G., Agúndez San Miguel, L., Castro Correa, A., Fernández Ferreiro, M., Jarrett, J., Peterson, D., Quetglas Munar, R., Sánchez Pardo, J. C., Santos Salazar, I., & Tomás Faci, G. (2022).…”