Columbia subject headings:
Boniface, Saint, Archbishop of Mainz, approximately 675-754--Correspondence.
Boniface, Saint, Archbishop of Mainz, approximately 675-754.
Christian saints--Germany--Mainz (Rhineland-Palatinate)--Biography.
Germany--Church history--Sources.
Harvard subject headings:
Boniface, Saint, Archbishop of Mainz, approximately 675-754.
Boniface, Saint, Archbishop of Mainz, approximately 675-754. Correspondence
Christian saints--Germany--Mainz (Rhineland-Palatinate)--Biography.
Germany--Church history--Sources.
Princeton subject headings: