Paris, Fontemoing 1896-1910 3 physical volumes, [644] + [647] + [308] pp. (i.e. 1288 + 1294 + 616 numbered columns), 32x26cm., solid uniform hardcover bindings (spines in grey cloth, marbled boards, title and two labels on spines, week binding of some pages in volume 3), original softcovers of vols.1-2 are preserved and bound, text in Latin, published in the series "Bibliothèque des écoles françaises d'Athènes et de Rome. 2e série", text printed in two columns, small stamp on title page, text is clean and bright, [This publication is an exhaustive collection of 6183 official papal documents issued during the entire 14-year pontificate of Pope Gregory IX (1227-1241). It is an essential resource for medieval history, providing a comprehensive and critical compilation of primary sources for the study of the 13th-cy. Papacy, the conflict between the papacy and Emperor Frederick II, and the administration of the Church], [Content: Volume I: Texte, années I à VIII (1227-1235, documents nos.1-2481) // Volume II: Texte, années IX à XII (1235-1239, documents nos.2482-4792), Volume III: Texte, années XIII à XV & Régistre de Pérouse (documents nos.4793-6183)], weight: 7.5 kg., R120592