It is in this old farm of the seventeenth century, the Clos des Metz, Leon Blum, leader of the Popular Front, moved to his deportation back of the Buchenwald concentration camp with his wife Joan (known Janot) that the joined to marry in 1943.
After some years of happy retirement with his wife, he died in this house March 30, 1950 at the age of 78.
The house remained as Jeanne Blum was left to the end of his life in 1982.
The house was acquired in life in 1972 by the Syndicate of Jouy-Velizy development. This sale was made and accepted by the union the following conditions:
"The house will perpetuate the memory of President Léon Blum and be assigned to a cultural and musical use..."
A museum in 1986, this place steeped in history was opened to the public.
The office and library were kept identical with a presentation of the political and literary Blum.
The Syndicate of development of Jouy-Velizy decided to sell in 1991 for the symbolic franc, the property to the city of Jouy-en-Josas.
Jouy-en-Josas City Council accepts this assignment and agrees to comply with the conditions of use of the property as defined in the bill of sale signed by Jeanne Blum.
