An entry point to the written heritage of the Middle Ages and the Renaissance in Western Europe, from the 8th to the 18th century.
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Célestin Ier (pape, 03..-0432?) : Epistula ad Constantinopolitanos, Portal Biblissima. Permalink: https://biblissima.demo.logilab.fr/ark:/43093/oedatac5af2216cb53b36d505b9b18a552ccbc8ea0c63e (seen 17/10/2026)
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