Francis Seymour-Conway, 9th Earl of Hertford (1743-1822), was a British nobleman and politician. He inherited the title of Earl of Hertford in 1792 and was known for his significant contributions to the arts and architecture, particularly through his patronage. He was also a member of the House of Lords and served in various political roles during his lifetime. In addition to his political career, the 9th Earl was a prominent collector of art and antiquities. He played a key role in the development of Syon House, his family estate, which features a blend of architectural styles and extensive gardens. His legacy includes a lasting impact on British cultural heritage.