April 27 (UPI) -- The archbishop of Canterbury, the Most Rev. Sarah Mullally, met and prayed with Pope Leo at the Vatican on Monday, a historic meeting that is the latest step in the Catholic Church and the Church of England improving their relationship. The visit follows one in October by King Charles III, which was the first time in 500 years that that the head of the Church of England had prayed with a pope. Mullally and the pope had a private meeting and then each gave an address, in