Christianity first spread to this region in the ninth century, as well as Uppsala being long-standing hub for regional trade. Uppsala's bull, which granted the university its corporate rights, established a number of provisions. Among the most important of these was that the university was officially given the same freedoms and privileges as the University of Bologna. This included the right to establish the four traditional faculties of theology, law (Canon Law and Roman law), medicine, and philosophy, and to award the bachelor's, master's, licentiate, and doctoral degrees. The archbishop of Uppsala was also named as the university's Chancellor, and was charged with maintaining the rights and privileges of the university and its members. This act of Sixtus IV had a profound long-term effect on the society and culture of Sweden, an effect which continues up to the present. Death Sixtus IV became ill on 8 August 1484; this illness worsened on 10 August while the pope was attending an event in Rome. He felt unwell that evening and was forced to cancel a meeting he was to hold with his cardinals the following morning. The Pope grew weaker during the night of 11 August and he was unable to sleep. Sixtus IV died the following evening – 12 August. The envoy of the Medici family summed up Sixtus' reign in the announcement to his master, "Today at 5 o'clock His Holiness Sixtus IV departed this life – may God forgive him!" Pope Sixtus's tomb was destroyed in the Sack of Rome in 1527. Today, his remains, along with the remains of his nephew Pope Julius II (Giuliano della Rovere), are interred in St. Peter's Basilica, in the floor in front of the monument to Pope Clement X. A marble tombstone marks the site. His bronze funerary monument, now in the basement Treasury of St. Peter's Basilica, made like a giant casket of goldsmith's work, is by Antonio del Pollaiuolo. The top of the casket is a lifelike depiction of the Pope lying in state. Around the sides are bas-relief panels depicting allegorical female figures representing Grammar, Rhetoric, Arithmetic, Geometry, Music, Painting, Astronomy, Philosophy, and Theology—the classical liberal arts, with the addition of painting and theology. Each figure incorporates the oak tree ("rovere" in Italian), symbol of Sixtus IV. The overall program of the panels, their beauty, complex symbolism, classical references and their relative arrangement are compelling and comprehensive illustrations