Paris in the 16th century on September 5, 1557, thirty were from noble families. In 1561-62, the number of Protestants in Paris was estimated at between ten and fifteen thousand; in France as a whole, three million, or fifteen percent of the population. The Massacre of Saint-Bartholomew's Day on August 23–24, 1572 killed between two and three thousand Protestants; it was followed by a large-scale emigration of Protestants out of the city, primarily to Sedan, Montbeliard and Geneva. In 1598, with the Edict of Nantes, the Protestant were again able to open a church a Grigny, on the banks of the Seine outside the city.
St. Bartholomew's Day massacre 18th-century historian Louis-Pierre Anquetil, in his "Esprit de la Ligue" of 1767, was among the first to begin impartial historical investigation, emphasizing the lack of premeditation (before the attempt on Coligny) in the massacre and that Catholic mob violence had a history of uncontrollable escalation. By this period the Massacre was being widely used by Voltaire (in his "Henriade") and other Enlightenment writers in polemics against organized religion in general. The question of whether the massacre had long been premeditated was not entirely settled until the late 19th century; Lord Acton changed his mind on the matter twice, finally concluding