Columbia subject headings:
British Library. Manuscript. Harley 3971.
Charlemagne, Emperor, 742-814--Romances.
Harvard subject headings:
British Library. Manuscript. Harley 3971
Charlemagne, Emperor, 742-814--Romances.
Manuscripts, Medieval--England--London.
Princeton subject headings:
British Library. Manuscript. Harley 3971
Charlemagne, Emperor, 742-814--Romances.