The 3rd Marquess of Hertford, Francis Seymour-Conway, was born on March 5, 1800, and died on June 24, 1870. He was a British nobleman and politician, known for his role in the House of Lords. He inherited the title from his father, the 2nd Marquess, and was involved in various social and political activities during his lifetime. The Marquess was also a notable art collector, amassing a significant collection that included works by famous artists. His collection later became part of the Wallace Collection, a museum in London, showcasing his contributions to the arts and culture of the time.