Subject: Theology
Author of work: Gregorius I
Title: Index to works of Gregory
Subject: Canon Law
Author of work: Johannes Andreae
Title: In Sextum librum decretalium
Subject: Canon Law
Author of work: Guido de Baysio
Title: In Sextum librum decretalium
Subject: Canon Law
Author of work: Johannes Andreae
Title: In Sextum librum decretalium
Subject: Epistolae
Author of work: Gregorius I
Title: Registrum
Subject: Philosophy
Title: Index to Averroes
Subject: Philosophy
Title: Index to a philosophical work
Subject: Philosophy
Title: Index to a philosophical work
Subject: Canon Law
Author of work: Innocentius IV
Title: In Decretales
Subject: Philosophy
Title: Index to a philosophical work