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Keywords
- Twelfth century[remove]3
- Fifteenth century2
- Manuscripts, Renaissance2
- codices (bound manuscripts)2
- Alexander III, Pope, -11811
- Catholic Church1
- Christianity1
- Civil law1
- Europe--Holy Roman Empire1
- Frederick I, Holy Roman Emperor, approximately 1123-11901
- Germany1
- Gregorian chants1
- Gregorian chants--Manuscripts1
- Guelfs and Ghibellines1
- History1
- International relations1
- Italy1
- Liturgics1
- Manuscripts, Italian1
- Manuscripts, Latin1