Note: Do not rely on this information. It is very old.
Quesnel, Pasquier (1634-1719), Jansenist theologian, was educated at the Sorbonne, and, when quite young, appointed director of the Paris house of the Congregation of the Oratory. His edition of the works of Leo the Great was placed in the Index Expurgatorius for its Gallican tendencies, and in 1684, refusing to abandon Jansenism, he had to flee to the Low Countries. His celebrated Reflexions Morales sur le Nouveau Testament, begun in Paris, were continued and published in Brussels, but condemned by the Bull "Unigenitus;" their author died at Amsterdam, whither he had fled from Jesuit persecution.