Columbia subject headings:
Bologna (Italy)--Biography.
Businesspeople--Italy--Bologna--Biography.
Ghelli family.
Harvard subject headings:
Bologna (Italy)--Economic conditions
Bologna (Italy)--Social conditions.
Ghelli family.
Nobility--Italy--Bologna.
Princeton subject headings:
Bologna (Italy)--Biography.
Bologna (Italy)--Economic conditions.
Bologna (Italy)--Social conditions.
Ghelli family.