Arnauld, Antoine (1560-1619)

French advocate of Jansenism. Strongly critical of the Jesuits, he produced not only Jansenist pamphlets, but works on logic, grammar, and geometry. Many of his 20 children were associated with the abbey of Port Royal, which became the centre of Jansenism. His youngest child was Antoine, ‘the great Arnauld’.

For years Arnauld had to live in hiding, and the last 16 years of his life were spent in Brussels.