Paris in the 16th century include the Tuileries Palace, the Fontaine des Innocents, the Lescot wing of the Louvre; the church of Saint-Eustache (1532); and the Hôtel Carnavalet, begun in 1545, now the museum of the history of Paris. During the century Paris was the second most important center of book publishing centers of Europe, after Venice. The University of Paris devoted its attentions largely to fighting the Protestant heresy, the King founded the College of France as a new center of learning independent of the university. Tensions between Protestants and Catholics grew, culminating in the St. Bartholomew's Day massacre in 1572, when several thousand
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