Columbia subject headings:
Council of Constance (1414-1418 : Konstanz, Germany)
Council of Pisa (1409 : Pisa, Italy)
French language.
Harvard subject headings:
Charles VI, King of France, 1368-1422.
Council of Pisa (1409 : Pisa, Italy)
John, Duke of Burgundy, 1371-1419
Schism, The Great Western, 1378-1417.
Princeton subject headings:
Council of Pisa (1409)
Schism, The Great Western, 1378-1417.