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. Brice's Day massacre there was significant loss of life, though evidence is lacking on any specific estimates. Among those thought to have been killed is Gunhilde, who may have been the sister of King Sweyn I of Denmark. Her husband Pallig Tokesen, the Danish Ealdorman of Devonshire, may also have died in the massacre or, according to a different version, played a part in provoking it by his defection to join raiders ravaging the south coast. The massacre in Oxford was justified by Æthelred in a royal charter of 1004 explaining the need to rebuild St Frideswide's Church (now Christ Church Cathedral): The