Columbia subject headings:
Harvard subject headings:
Portugal--Court and courtiers--Congresses.
Portugal--Intellectual life--Congresses.
Portugal--Kings and rulers--Religious aspects--Congresses.
Spirituality--Portugal--History--Congresses.
Princeton subject headings:
Church and state--Portugal--History--Congresses.
Portugal--Court and courtiers--Congresses.
Portugal--Kings and rulers--Religious aspects--Congresses.
Spirituality--Portugal--History--Congresses.