English ecclesiastical court instituted by Henry VIII to enforce the Act of Supremacy (1534). It became a controversial instrument of repression, used against those who refused to acknowledge the authority of the Church of England. Its main function, and the most controversial, was administration of the oath ex officio, committing one to answer even self-incriminating questions; those who refused to take the oath were turned over to the feared Court of Star Chamber. Opposition, mainly from the Puritans and the common lawyers, resulted in the court's abolishment by Parliament in 1641. See also prerogative court