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 The Oath of Supremacy was originally imposed by King Henry VIII of England through the Act of Supremacy 1534, but repealed by his daughter, Queen Mary I of England and reinstated under Mary's half-sister, Queen Elizabeth I of England under the Act of Supremacy 1559.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
Succession to the Crown Act 2013 came into effect was George Windsor, Earl of St Andrews, who had married a Roman Catholic in 1988, and was restored to the line of succession in 34th place, after his father the Duke of Kent. The provision of the Act of Settlement requiring the monarch to be a Protestant continues, as the monarch remains the Supreme Governor of the Church of England. The Royal Marriages Act 1772 is repealed. Instead, only the first six persons in line to the throne require the Sovereign's approval to marry. Marriage without the Sovereign's consent would disqualify the person and the person's descendants