Subject: Canon Law
Author of work: Guido de Baysio
Title: In Sextum librum decretalium
Subject: Canon Law
Author of work: Gratianus
Title: Decretum Gratiani
Subject: Canon Law
Author of work: Gratianus
Title: Decretum Gratiani
Subject: Theology
Author of work: Gregorius I
Title: De cura pastorali
Subject: Canon Law
Author of work: Guido de Baysio
Title: Comment. in Sextum librum decretalium
Subject: Canon Law
Author of work: Gregorius IX
Title: Decretales
Subject: Theology
Author of work: Gregorius I
Title: Moralia
Subject: Grammar
Title: Grammar/figures of speech
Subject: Canon Law
Author of work: Gregorius IX
Title: Decretales
Subject: Canon Law
Title: A 'Summa' of Decretum Gratiani