Columbia subject headings:
Harvard subject headings:
Béarn (France)--Kings and rulers--Biography--Congresses.
France--History--14th century--Congresses.
Gaston III Phœbus, Count of Foix, 1331-1391--Congresses.
Gaston III Phœbus, Count of Foix, 1331-1391--Travel--Germany--Prussia--Congresses.
Princeton subject headings:
Béarn (France)--Kings and rulers--Biography--Congresses.
France--History--14th century--Congresses.
Gaston III Phœbus, Count of Foix, 1331-1391--Congresses.
Gaston III Phœbus, Count of Foix, 1331-1391--Travel--Prussia--Congresses.