Columbia subject headings:
Alexander VII, Pope, 1599-1667--Diaries.
Popes--Diaries.
Harvard subject headings:
Alexander VII, Pope, 1599-1667--Diaries.
Alexander VII, Pope, 1599-1667.
Papacy--History--1566-1799--Sources.
Peace of Westphalia
Popes--Diaries.
Thirty Years' War, 1618-1648--Sources
Princeton subject headings: