Supplement to History of the barons de Spon, comtes zu Forbach and allied families (1968) /
De Spon, Seymour de Spon,Baron,1913-
De Spon, Seymour de Spon,Baron,1913-History of the barons de Spon, comtes zu Forbach and allied families.
[London] : [Seymour, Baron de Spon],
1996.
Includes bibliographical references.
Privately printed.
De Spon family.
France
England