Subject: Biblica
Author of work: Gregorius I
Title: Homiliae in Ezechielem
Subject: Canon Law
Author of work: Gregorius IX
Title: Decretales
Subject: Natural History
Title: Natural history
Subject: Theology
Author of work: Gregorius I
Title: Moralia
Subject: Moral philosophy
Title: Moral philosophy/theology
Subject: Theology
Author of work: Petrus Comestor
Title: Historia scholastica
Subject: Civil Law
Author of work: Justinianus
Title: Digestum infortiatum
Subject: Liturgy
Title: Horae
Subject: Medicine
Author of work: Aegidius Corboliensis
Title: De urinis
Subject: Natural History
Title: Meteorology