Christian II was dethroned for his centralism, which angered many and Frederick I came to the throne. His early reign wasn't so smouth either and especially oversea parts took a long time to recognize him. After the uneasy years of 1520s, came a trial of Christian II for a Coup d'état in 1532. His allies from Netherlandish exile however didn't expect support for Frederick and Christian was imprisoned for life. At this time Lutherans began to settle in the lands as Frederick did except them, but never converted. He later caught an illness and the so clergy, scared of the much more lutheran Christian III, tried to make him live for longer, however their cure actually shorten it. In 1535 the Lutheran church became the official religion of Denmark-Norway. During the 1550s the expelled popes of the Lutheran church settled in Iceland (Paul III).