Relations improved after the accession of the Catholic Queen Mary in 1553-58, and in the early years of the reign of her sister Queen Elizabeth I. After Mary's death in November 1558, Elizabeth's Parliament passed the Act of Supremacy of 1559, which re-established the Church of England's separation from the Catholic Church. Initially, Elizabeth adopted a moderate religious policy. The Acts of Supremacy and Uniformity (1559), the Prayer Book of 1559, and the Thirty-Nine Articles (1563) were all Protestant in doctrine, but preserved many traditionally Catholic ceremonies.