Columbia subject headings:
Artists--Austria--Biography.
Koch family.
Koch, Joseph Anton, 1768-1839.
Rome (Italy)--Biography.
Rome (Italy)--Genealogy.
Harvard subject headings:
Koch, Joseph Anton, 1768-1839
Princeton subject headings:
Artists--Austria--Biography.
Koch family.
Koch, Joseph Anton, 1768-1839.
Rome (Italy)--Biography.
Rome (Italy)--Genealogy.