Columbia subject headings:
Harvard subject headings:
Farnese family--Correspondence.
Gonzaga Colonna, Vespasiano, duca di Sabbioneta, 1531-1591--Correspondence.
Nobility--Italy--Correspondence.
Princeton subject headings:
Farnese family--Correspondence.
Gonzaga Colonna, Vespasiano, duca di Sabbioneta, 1531-1591--Correspondence.
Nobility--Italy--Correspondence.