Sebastian Castellio

Sebastian Castellio
Born	1515 Saint-Martin-du-Frêne, Duchy of Savoy
Died	29 December 1563(1563-12-29) (aged 47–48) Basel, Swiss Confederation
Nationality	French
Occupation(s)	Preacher, professor, theologian, translator
Notable work	De haereticis, an sint persequendi
Theological work
Notable ideas	Freedom of thought

Sebastian Castellio (also Sébastien Châteillon, Châtaillon, Castellión, and Castello; 1515 – 29 December 1563) was a French preacher and theologian; and one of the first Reformed Christian proponents of religious toleration, freedom of conscience and thought.