Oath of Supremacy Oath of Supremacy The Oath of Supremacy required any person taking public or church office in England to swear allegiance to the monarch as Supreme Governor of the Church of England. Failure to do so was to be treated as treasonable. The Oath of Supremacy was originally imposed by King Henry VIII of England through the Act of Supremacy 1534, but repealed by his daughter, Queen Mary I of England and reinstated under Mary's half-sister, Queen Elizabeth I of England under the Act of Supremacy 1559. The Oath was later extended to include Members of Parliament and people studying at
Head of state and head of state, first, of the politically important Papal States. After Italian unification, the pope remains head of state of Vatican City. Furthermore, the Bishop of Urgell is "ex officio" one of the two Co-Princes of Andorra. In the Church of England, the reigning monarch holds the title Defender of the Faith and acts as Supreme Governor of the Church of England, although this is purely a symbolic role. During the early period of Islam, caliphs were spiritual and temporal absolute successors of the Prophet Mohammed. Various political Muslim leaders since have styled themselves "Caliph" and served as dynastic