Act of Supremacy
In 1534, the English Parliament passed the Act of Supremacy, which declared King Henry VIII "Supreme Head on Earth of the Church of England." The law ended the pope's authority over the English church and placed it under royal control. It was a decisive step in the English Reformation, and it reshaped the religious, political, and cultural life of England for centuries.
The immediate cause was Henry's marriage crisis. His wife, Catherine of Aragon, had borne only one surviving child, Mary, and Henry wanted a male heir to secure the Tudor dynasty. By the late 1520s he was seeking an annulment, arguing that his marriage to his late brother's widow had been invalid. Pope Clement VII, under heavy pressure from Catherine's nephew, the Holy Roman Emperor Charles V, never granted it. Henry's growing attachment to Anne Boleyn added urgency. Historians also point to deeper currents: resentment of papal authority and clerical privilege, the appeal of Protestant ideas spreading from the Continent, and the crown's interest in the church's wealth.
Between 1529 and 1534, Henry and his ministers, notably Thomas Cromwell, used Parliament to dismantle papal power step by step. The clergy were pressured to acknowledge the king's headship, Thomas Cranmer became Archbishop of Canterbury in 1533, and Cranmer ruled the marriage to Catherine invalid. Henry had by then married Anne Boleyn. The Act of Supremacy in late 1534 gave this arrangement a firm legal foundation, and the Treason Act that followed made it dangerous to deny the king's new title.
The consequences were swift and sometimes violent. Subjects could be required to swear an oath accepting the royal supremacy. Those who refused included Thomas More, the former Lord Chancellor, and John Fisher, Bishop of Rochester, both executed in 1535. From 1536, Cromwell oversaw the dissolution of the monasteries, which transferred enormous amounts of land and wealth to the crown and to those who later purchased it. The Pilgrimage of Grace, a large rising in northern England in 1536, showed that many people resented the changes.
Henry himself remained doctrinally fairly conservative, and the English church kept much traditional belief and ritual during his reign. Under his son Edward VI, it moved more decidedly in a Protestant direction, was briefly returned to Rome under Mary I, and was settled in a middle path under Elizabeth I. The principle of royal supremacy, restated in her Act of Supremacy of 1559, remains part of the constitutional position of the Church of England, whose Supreme Governor is the monarch.