Subject: Civil Law
Author of work: Justinianus
Title: Codex Justiniani
Subject: Theology
Title: Theological commentary
Subject: Theology
Title: theological questions
Subject: Natural philosophy
Title: Natural philosophy
Subject: Civil Law
Author of work: Justinianus
Title: Digestum vetus
Subject: Civil Law
Author of work: Justinianus
Title: Digestum vetus
Subject: Documentary
Title: Registrum Johannis de Gaunt
Subject: Grammar
Author of work: Johannes Balbus
Title: Catholicon
Subject: Liturgy
Title: Missale
Subject: Encyclopaedia
Author of work: Isidorus
Title: Etymologiae