How many pieces does Picasso 's exhibit have in Paris ?
After Picasso 's death in 1973 , Francoise Gilot painter and Picasso 's former companion between 1943 and 1953 , and mother of two of his children Claude and Paloma , had already launched litigation to have their father certified insane , fought with Roque over the distribution of the artist 's estate , and agreed to establish the Musée Picasso in Paris .