Columbia subject headings:
Frothaire, évêque de Toul, -847--Correspondence.
Harvard subject headings:
Catholic Church--France--Toul--History--Sources.
France--History--To 987--Sources.
Frothaire, évêque de Toul, -847--Correspondence.
Theuthilde, abbess of Remiremont--Correspondance.
Princeton subject headings:
Catholic Church--France--History--Middle Ages, 600-1500.
Frothaire, évêque de Toul, -847--Correspondence.
Theuthilde, Abbess of Remiremont--Correspondence.