This complete and well-preserved codex in an impressive folio format contains the Psalter commentaries by Peter Lombard. The text was highly in demand and often copied in the Middle Ages. The manuscript at hand is a deluxe copy illuminated in the workshop of the Vie de Saint Denis possibly for export to a monastic or private library in another country. The border alterations made in Spain were presumably made in the noble library of the marquises of Astorga, where the codex was located from the 15th century onward.