Columbia subject headings:
Cities and towns--England.
Cowlthorp family.
Devonshire, Dukes of.
Nobility--England--Case studies.
Harvard subject headings:
Cowlthorp family.
Devonshire, Dukes of.
Nobility--England--Case studies.
Princeton subject headings:
Cities and towns--Great Britain--Case studies.
Cowlthorp family.
Devonshire, Dukes of.
Land tenure--Great Britain--Case studies.
Nobility--Great Britain--Case studies.