By Chris Pleasance for MailOnline. The pages were uncovered after Emilio Alonso Manglano, the former head of Spain's security service, alleged in his memoirs that Ms Rey had video tapes of her and King Carlos together and had received large sums of money to keep them secret.
Ms Rey, an actress and model, has denied ever receiving money from Juan Carlos or anyone in his circle. None of the companies named in the diary has commented. Juan Carlos pictured with wife Sofia in is alleged to have been filmed in compromising situations with Ms Rey on cameras hidden at her home during the trysts.
Juan Carlos, who abdicated the throne in and now lives in self-imposed exile in Abu Dhabi while facing corruption trials at home, has previously denied any wrongdoing and said he is ready to speak with prosecutors.
Spanish newspaper El Periodico claims to have tracked down the pages, dated from September , after claims that Rey had 'blackmailed' Juan Carlos featured in a recent book by two Spanish journalists and were last week discussed on TV. Juan Carlos is alleged to have been a serial adulterer, with one author claiming he had up to 5, mistresses. Balin was assured that Telefonica, one of the world's largest telephone operators, and Santander, one of the world's largest banks, would be making similar payments, according to the diaries.
He also claimed that Rey was given preferential treatment for contracts on Valencian TV shows and other publicity in exchange for her silence. Cortes is also not the only Spanish secret service boss to have alleged the affair took place, or that Rey was paid for her silence.
