Columbia subject headings:
Europe--Commerce--History--16th century.
Europe--Commerce--History--To 1500.
Merchants--Biography.
Harvard subject headings:
Princeton subject headings:
Art patrons--Europe.
Businessmen--Europe.
Datini, Francesco, 1335-1410--Art patronage.
Fugger, Jakob, 1459-1525--Art patronage.
Ruiz, Simón, active 1550-1565--Art patronage.