At Oxford, Morris became the best friend of fellow undergraduate Edward Burne-Jones; they had a shared attitude to life and a keen mutual interest in Arthurianism. Having passed his finals and been awarded a BA in 1856, Morris began an apprenticeship with the Oxford-based Gothic revival architect George Edmund Street in January 1856. There he was placed under the supervision of Philip Webb, who became a close friend. He soon relocated to Street's London office, in August 1856 moving into a flat in Bloomsbury, Central London with Burne-Jones. Morris was fascinated by London but dismayed at its pollution and rapid expansion into neighbouring countryside, describing it as "the spreading sore". Preferring rural life, Morris became increasingly fascinated with the Pre-Raphaelites and soon met one of the foremost Pre-Raphaelite painters, Dante Gabriel Rossetti, after Burne-Jones became Rossetti's disciple; the three soon became close friends. Through Rossetti, Morris came to associate with poet Robert Browning, and the artists Arthur Hughes, Thomas Woolner, and Ford Madox Brown. At Rossetti's recommendation, Morris and Burne-Jones moved in together to a flat at No. 17 Red Lion Square in Bloomsbury by November 1856. Morris designed and commissioned furniture for the flat in a Medieval style, much of which he painted with Arthurian scenes in a direct rejection of mainstream artistic tastes.