Books by Papa Gregorio IX:
Books in the extended shelves:
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Gregorio IX, Papa, 1170-1241: [Privilegio del rey Don Alonso el Onceno. Donacion que el señor rey D. Alphonso el Octavo. Bulla de confirmacion de la santidad de Gregorio Nono ] (s.n., 1732), also by Hospital del Rey (Burgos), Rey de Castilla Alfonso VIII, and Rey de Castilla Alfonso XI (page images at HathiTrust)- Gregorio IX, Papa, 1170-1241: Ad secundum librum Decretalium Gregorii Pp. 9. Prolepsis: Publicae Disputationi Exposita In Regali Neapolitano Monasterio SS. Seuerini, [et] Sossii. anno 1699 (excudebat De Bonis Typographus Archiepiscopalis, 1699), also by De Bonis (page images at HathiTrust)
- Gregorio IX, Papa, 1170-1241: D.D. Emanuelis Gonzalez Tellez ... Commentaria perpetua in singulos textus quinque librorum Decretalium Gregorij IX : tomus secundus ... [Pars prima-secunda] (sumptibus Laurentii Arnaud, & Petri Borde, 1673), also by Manuel González Téllez, Pierre Borde, and Laurent Arnaud (page images at HathiTrust)
- Gregorio IX, Papa, 1170-1241: Decretales epistolae Summorum Pontificum (apud Gulielmum Rouillium, 1555), also by Martín Ruiz, Guillaume Rouillé, Jean Ausoult, Santo Ramón de Peñafort, Casa Profesa de la Compañía de Jesús (Madrid), and Biblioteca Complutense (Alcalá de Henares) (page images at HathiTrust)
- Gregorio IX, Papa, 1170-1241: Epistolae Decretales Summorum Pontificum (ex officina Christophori Plantini, 1570), also by Christophe Plantin (page images at HathiTrust)
- Gregorio IX, Papa, 1170-1241: Gregorii Papae IX Decretales, una cum Libro sexto, Clementinis et Extravagantibus... : quibus accedunt Septimus Decretalium. et Io. Pauli Lancelotti Institutiones Iuris Canonici... : tomus II. (expensis Gasparis Girardi..., 1760), also by Gasparo Girardi and Giovanni Paolo Lancellotti (page images at HathiTrust)
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