Subject: Liturgy
Title: Breviarium cum notis
Subject: Theology
Author of work: Gregorius I
Title: Registrum
Subject: Civil Law
Author of work: Justinianus
Title: Digestum infortiatum
Subject: Liturgy
Title: Breviarium
Subject: Logic
Title: Logic
Subject: Grammar
Author of work: Johannes Balbus
Title: Catholicon
Subject: Liturgy
Title: Breviarium