Thomas Agnew & Sons, established in 1817, is one of London's leading art dealerships and has acted as principal agents and advisors to some of the most important collectors of their time. The gallery has been involved in placing masterpieces in major collections and museums around the world, handling works by, amongst others, Caravaggio, Van Dyck, El Greco, Frans Hals, Poussin, Rembrandt, Rubens, Vermeer, Titian, Turner and Velázquez, including the latter’s Rokeby Venus in the National Gallery, London.