The divine right of kings, divine right, or God's mandate is a political and religious doctrine of royal and political legitimacy. It asserts that a monarch is subject to no earthly authority, deriving the right to rule directly from the will of God. The king is thus not subject to the will of his people, the aristocracy, or any other estate of the realm, including (in the view of some, especially in Protestant countries or during the reign of Henry VIII of England) the Catholic Church. It is often expressed in the phrase "by the Grace of God," attached to the titles of a reigning monarch.