Unigenitus

Unigenitus (named for its Latin opening words Unigenitus dei filius, or "Only-begotten son of God"), an apostolic constitution in the form of a papal bull promulgated by Pope Clement XI in 1713, opened the final phase of the Jansenist controversy in France. Unigenitus condemned 101 propositions of Pasquier Quesnel as:

false, captious, ill-sounding, offensive to pious ears, scandalous, pernicious, rash, injurious to the Church and its practices, contumelious to Church and State, seditious, impious, blasphemous, suspected and savouring of heresy, favouring heretics, heresy, and schism, erroneous, bordering on heresy, often condemned, heretical, and reviving various heresies, especially those contained in the famous propositions of Jansenius.

The controversy over the acceptance of Unigenitus in France sheds more light on the conduct of diplomacy at the court of the aged Louis XIV than it does on Jansenism.