. "1484-08-12Z"^^ . . "Sixtus IV"@en . "Pope" . "1414Z"^^ . . . "Pope Sixtus IV (Latin: Xystus IV; 21 July 1414 \u2013 12 August 1484), born Francesco della Rovere, was Pope from 9 August 1471 to his death in 1484. His accomplishments as pope included building the Sistine Chapel; the group of artists that he brought together introduced the Early Renaissance into Rome with the first masterpieces of the city's new artistic age. He also established the Vatican Archives."@en . "1414-07-21Z"^^ . . . . "Sixtus 4"@en . "1484Z"^^ .