Columbia subject headings:
Church architecture--Portugal--Lisbon.
Convents--Portugal--Lisbon.
Lisbon (Portugal)--Buildings, structures, etc.
Lisbon (Portugal)--Description and travel.
Harvard subject headings:
Convents--Portugal--Lisbon--History.
Historic buildings--Portugal--Lisbon--History.
Lisbon (Portugal)--History.
Princeton subject headings:
Convents--Portugal--Lisbon.