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 The Oath of Supremacy was originally imposed by King Henry VIII of England through the Act of Supremacy 1534, but repealed by his daughter, Queen Mary I of England and reinstated under Mary's half-sister, Queen Elizabeth I of England under the Act of Supremacy 1559.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
History of the Church of England the local monarch and the Pope about civil judicial authority over clerics, taxes and the wealth of the Church, and appointments of bishops, notably during the reigns of Henry II and John. As begun by Alfred the Great in 871 and consolidated under William the Conqueror in 1066, England became a politically unified entity at an earlier date than other European countries. One of the effects was that the units of government, both of church and state, were comparatively large. England was divided between the Province of Canterbury and the Province of York under two archbishops. At the time of