King Henry VIII is most commonly associated with the establishment of the Church of England. His desire to annul his marriage to Catherine of Aragon, which the Pope denied, led to a breach with the Roman Catholic Church. In 1534, Henry proclaimed himself the Supreme Head of the Church of England through the Act of Supremacy, effectively creating a new religious entity that allowed him to remarry and consolidate power over religious matters in England. This act not only marked the beginning of the English Reformation but also had profound social, political, and religious implications that shaped the course of English history.