The Wallace Collection is a museum in London, with a world-famous range of fine and decorative arts from the 15th to the 19th centuries with large holdings of French 18th-century paintings, furniture, arms & armour, porcelain and Old Master paintings arranged into 25 galleries.It was established in 1897 from the private collection mainly created by Richard Seymour-Conway, 4th Marquess of Hertford (1800–1870), who left it and the house to his illegitimate son Sir Richard Wallace (1818–1890), whose widow bequeathed the entire collection to the nation.