International audienceRichelieu was profoundly hostile to the Protestants whom he regarded as a dangerous political party. He struggled against them, but also hoped to win them through discussion. He was welle versed in their theology and has written two books of controversy, in which he often quoted Calvin. Thanks to Protestant and Catholic authors, he knew his biography but paid particular attention to his behaviour and character, which to him clearly indicated that Calvin could not be a member of the Church of Jesus Christ. He saw him as an innovator who had many followers in Europe. As he wanted to unite the Protestants to the Roman Church, he showed at they did not agree between themselves and were often closer to the catholic faith th...