El episcopado leonés de don Juan del Campo (†1344): Diplomacia, arte y liturgia en la catedral de León en tiempos de Alfonso XI

This study explores the trajectory of Don Juan del Campo, an eminent ecclesiastical figure renowned for his diplomatic careerand hierarchical ascent. A native of a distinguished bourgeois family from Compostela, Del Campo acted as the patron of theconvent of Santa María de Belvís in Santiago; however, his principal historical significance resides in his politico-ecclesiasticalendeavors. His progressive career encompassed appointments as Archdeacon of Lugo and Chief Notary of Andalusia (1326), subsequently ascending to the episcopal sees of Cuenca (1327–1328), Oviedo (1328–1332), and ultimately León (1332–1344). Simultaneously, he undertook vital diplomatic missions, including an embassy to the papal court in Avignon and military negotiations with Don Juan Manuel concerning the war of Granada. During his episcopate in León, he notably sought to consolidate the bonds between his diocese and the Castilian-Leonese crown by instituting specific processions and prayers in honor of Alfonso XI. Furthermore, Don Juan del Campo enacted a systematic reform of the Leonese cathedral chapter through a series of constitutions governing liturgical attendance, clerical behavior, economic management, and ecclesiastical discipline. These reforms addressed enduring issues, such as clerical absenteeism and concubinage, which had persisted since the thirteenth century.