Thomas Agnew and Sons is a fine arts dealer specializing in Old Masters in London founded in 1817 by Thomas Agnew. The founder’s sons, Sir William Agnew, 1st Barontet (1825-1910) and Thomas Agnew (1827-1883) were highly influential in establishing the firm and drew many connections from Sir William’s relations as Agnew’s first established itself in 1860. Through the years Agnew’s clients included Edward Cecil Guinness, 1st Earl of Iveagh (1847-1927) Ferdinand de Rothschild (1839-1898), Paul Mellon (1907-1999), Norton Simon (1907-1993), the Samuel Kress Foundation, the National Gallery, London, etc. Agnew’s was purchased privately in 2013 and is now run by Lord Anthony Crichton-Stuart—the former head of Christie’s Old Master paintings department, NY). In addition, throughout the years Agnew’s has placed many major pieces in museums across Europe and America such as The Metropolitan Museum of Art, National Gallery of Art, Washington, DC, National Gallery, London, and more.