Columbia subject headings:
Bernardino, da Siena, Saint, 1380-1444--Congresses.
Catherine, of Siena, Saint, 1347-1380--Congresses.
Harvard subject headings:
Bernardino, da Siena, Saint, 1380-1444--Congresses.
Catherine, of Siena, Saint, 1347-1380--Congresses.
Christian saints--Italy--Siena--Congresses.
Siena (Italy)--Church history--Congresses.
Princeton subject headings:
Bernardino, da Siena, Saint, 1380-1444--Congresses.
Catherine, of Siena, Saint, 1347-1380--Congresses.