Subject: Canon Law
Author of work: Gratianus
Title: Decretum Gratiani
Subject: Canon Law
Title: Antiqua compilatio decretalium III
Subject: Theology
Author of work: Petrus Comestor
Title: Historia scholastica
Subject: Civil Law
Title: Commentary on civil law
Subject: Theology
Author of work: Petrus Lombardus
Title: Sententiae
Subject: Canon Law
Title: Commentary on Antiqua compilatio decretalium I
Subject: Theology
Title: Commentary on Sentences (?)
Subject: Liturgy
Title: Sequentiae
Subject: Encyclopaedia
Author of work: Rabanus Maurus
Title: De natura rerum
Subject: Canon Law
Author of work: Gratianus
Title: Decretum Gratiani