How did Persian Letters discuss the controversy over the papal bull Unigenitus?

In his 1721 work Persian Letters, Montesquieu reflects the intense controversy surrounding the papal bull Unigenitus. Issued by Pope Clement XI in 1713, the bull condemned 101 theological propositions of the Jansenist writer Pasquier Quesnel.

Montesquieu uses the Persian Letters to provide a satirical and critical perspective on the religious and political tensions of the era. The work incorporates the Unigenitus controversy as part of its broader, iconoclastic critique of Roman Catholic doctrine and the state of French society. By framing these observations through the eyes of foreign travelers, Montesquieu highlights the absurdity of the conflict, which pitted the French crown and the papacy against Jansenist supporters and the Parlements who viewed the bull as an infringement on the autonomy of the French church, known as Gallicanism. The text serves as a vehicle for his vigorous, disrespectful, and enlightened criticism of the religious dogmatism that defined the period.12