Jansenists

A sect or schism of Catholics, founded in France in the seventeenth century, who strongly opposed the doctrinal and ethical teachings of the Jesuits. Their doctrines were based on the August in us of Cornel i us Jansen, Bishop of Yprès, published after his death, which took place in 1638. Its adherents included such men as Arnauld and Pascal. Jansenism was finally declared heretical by the Bull Uni gen it us in 1653.