Latterly regarded as a political outcast and shunned by his ancestrally blue blood social connections for his "heretical" political extremism and disregard for the external norms of modern aristocratic etiquette and behavior, Junio Valerio Borghese died under mysterious circumstances in Cádiz, Spain, on 26 August 1974, aged 68.[9] The death certificate records the cause of death as "acute hemorrhagic pancreatitis"; however, since the Prince was visited by a physician who found him in good shape just a few days before, it has been suggested that the circumstances of his death, characterized by a sudden onset of abdominal pain immediately after supper, could be compatible with arsenic poisoning.[10]