The Seven Artes Liberales
From the manuscript MIII 36 of Universitätsbibliothek Salzburg

The seven Artes Liberales move a chariot with the Sacra Theologia (holding the head of the Christ), forced by Magister Sentenciarum Magister Petrus Lombardus (author of the "Sententia" in 12th century)

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User: Kolorierte Federzeichnung. Unibibliothek Salzburg, M III 36

Sententiae in IV Libris Distinctae
Third edition. Full title: Magistri Petri Lombardi Parisiensis Episcopi Sententiae in IV Libris Distinctae. Grottaferrata: Editiones Collegii S. Bonaventurae ad Claras Aquas, 1971-1981. BQ 6758 .L4 1971 (Religious Studies and Philosophy Library, room 314) 

Peter Lombard
Two volumes. Colish, Marcia L. Leiden; New York: E.J. Brill, 1994. BQ 6758 .Z6 C64 1994 (Stacks)

Die scholastische Methode im 12. und Beginnenden 13. Jahrhundert in Die Geschichte der Scholastischen Methode (vol. 2)
Grabmann, Martin. Darmstadt: Wissenschaftliche Buchgesellschaft, 1957 (Reprint of the 1909 Freiburg edition). B734 .G72 G3 1957 (Stacks)

Repertorium Commentariorum in Sententias Petri Lombardi
Two volumes. Stegmuller, Friedrich. Herbipoli (Wurzburg) Schoning, 1947. BQ 6758 .L5 S8 (Stacks)