Michael Servetus

Michael Servetus (1509 or 1511–1553) was an Aragonese theologian, physician and Renaissance humanist, born at Villanueva de Sigena. He took part in the Protestant Reformation and rejected the doctrine of the Trinity. He studied medicine in France, and his Restoration of Christianity (1553) contained the first correct European description of pulmonary circulation.

Arrested by the Catholic Inquisition in April 1553, he escaped to Geneva, where John Calvin denounced him; the city council condemned him and burned him at the stake on 27 October 1553.