French author Paul Heinrich Dietrich had the Church of his time scared of him. And so much so no one knows where he was ultimately buried. He is considered to be the father of modern atheism.
http://en.wikiquote.org/wiki/Baron_d%27Holbach
http://en.wikipedia.org/wiki/Baron_d%27Holbach
http://en.wikiquote.org/wiki/Baron_d%27Holbach
http://en.wikipedia.org/wiki/Baron_d%27Holbach