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 The Oath of Supremacy was originally imposed by King Henry VIII of England through the Act of Supremacy 1534, but repealed by his daughter, Queen Mary I of England and reinstated under Mary's half-sister, Queen Elizabeth I of England under the Act of Supremacy 1559.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
Politics of England Kingdom. Referendums would decide whether people wanted to vote for regional assemblies to watch over the work of the non-elected RDAs. The Church of England is the officially established Christian church in England. Queen Elizabeth II is the official head of the church, with the title Supreme Governor of the Church of England, while the Archbishop of Canterbury is the head clergyman. The canon law of the Church of England states, "We acknowledge that the Queen's most excellent Majesty, acting according to the laws of the realm, is the highest power under God in this kingdom, and has supreme authority