Subject: Canon Law
Author of work: Gregorius IX
Title: Decretales
Subject: Theology
Author of work: Gregorius I
Title: Moralia
Subject: Encyclopaedia
Author of work: Isidorus
Title: Etymologiae
Subject: Biblica
Author of work: Hieronymus
Title: In Prophetas Minores
Subject: Canon Law
Author of work: Gregorius IX
Title: Decretales
Subject: Theology
Author of work: Hieronymus
Title: In Prophetas Minores
Subject: Theology
Author of work: Gregorius I
Title: Moralia
Subject: Philosophy
Title: Index or table to a commentary on Aristotle
Subject: Theology
Author of work: Gregorius I
Title: Dialogi
Subject: Theology
Author of work: Isidorus
Title: Sententiae