The King of Saudi Arabia will have an audience with Pope Benedict XVI in the Vatican. This is the first time that such an event occurs. There is the possibility that reconciliation between the Islamic and Catholic Faith will be discussed. Another possibility is Pope Benedict XVI calling for a religious tolerance in Saudi Arabia yet the Quran only allows Islam in the Arabian Peninsula.

Reference:

BBC News: “Historic Saudi visit to Vatican”http://news.bbc.co.uk/2/hi/europe/7080327.stm