Subject: History
Author of work: Willelmus Malmesburiensis
Title: Gesta regum
Subject: Theology
Author of work: Henricus de Gandavo
Title: Quodlibeta
Subject: Canon Law
Author of work: Gregorius IX
Title: Decretales
Subject: Theology
Author of work: Henricus de Gandavo
Title: Quodlibeta
Subject: Canon Law
Author of work: Gregorius IX
Title: Decretales
Subject: Liturgy
Title: Graduale
Subject: Liturgy
Title: Graduale
Subject: Liturgy
Title: Graduale
Subject: Canon Law
Author of work: Gratianus
Title: Decretum Gratiani