Guy Ferreboeuf, the lawyer of Marina Ruiz-Picasso, the painter's granddaughter, writes to Miguel Solano Aza, Spanish ambassador in France, to express his client's stance regarding the transfer of Guernica to Spain. He goes on to explain that as long as the political situation in Spain remains as Picasso wished, his client will not offer any opposition.
España. Ministerio de Educación, Cultura y Deporte. Archivo Histórico Nacional