Subject: Canon Law
Author of work: Gratianus
Title: Decretum Gratiani
 
    
Subject: Canon Law
Author of work: Gescelinus
Title: Comment. in constitutiones Clementinas
 
    
Subject: Theology
Author of work: Gregorius I
Title: De cura pastorali
 
    
Subject: Theology
Author of work: Gregorius I
Title: De cura pastorali
 
    
Subject: Theology
Author of work: Gregorius I
Title: Moralia
 
    
Subject: Canon Law
Author of work: Gregorius IX
Title: Decretales