Vatican Reveals Secret Archives A 13th-century letter from Genghis Khan’s grandson demanding homage from the pope is among a collection of documents from the Vatican’s Secret Archives that has been published for the first time. By Nick Squires in Rome 01 Jan 2010 In a letter dated 1246 from Grand Khan Guyuk, pictured, to Pope Innocent IV, Genghis Khan's grandson demands that the Pontiff travel to central Asia in person The Holy See’s archives contain scrolls, parchments and leather-bound volumes with correspondence dating back more than 1,000 years. High-quality reproductions of 105 documents, 19 of which have never been seen...