For seven decades, Lucian Freud put great energy into his work, particularly the portraits of family and friends now the subject of an exhibition called 'Lucian Freud: Real Lives’ at Tate Liverpool. Martin Gayford takes a look.

Girl with a Kitten, 1947 (oil on canvas) by Lucian Freud (1922-2011). ©The Lucian Freud Archive; English, in copyright.
For seven decades, Lucian Freud put great energy into his work, particularly the portraits of family and friends now the subject of an exhibition called 'Lucian Freud: Real Lives’ at Tate Liverpool. Martin Gayford takes a look.