Francis Seymour-Conway, 3rd Marquess of Hertford British politician and art collector (1777-1842) (1777–1842) Parents Isabella Ingram-Seymour-Conway, Marchioness of Hertford Francis Ingram-Seymour-Conway, 2nd Marquess of Hertford Children Richard Seymour-Conway, 4th Marquess of Hertford Lady Francis Maria Seymour-Conway Henry Seymour Siblings Henry Augustus Seymour Partners Maria Seymour-Conway, Marchioness of Hertford
