(45 mins) The Ottomans continued the theme of borrowing from, or adapting the work of their Byzantine predecessors. The two dominating buildings of historic Istanbul are the Blue Mosque and Haghia Sophia. The latter is a converted Christian cathedral, still containing the images of Jesus and Mary alongside the motifs of the early caliphs. The man mainly responsible for the conversion was the pre-eminent architect of Islam, Sinan. He was lucky enough to win the patronage of Suleiman the Magnificent, one of the richest and the most powerful of Ottoman rulers.