St. Bartholomew's Day massacre St. Bartholomew's Day massacre The St. Bartholomew's Day massacre () in 1572 was a targeted group of assassinations and a wave of Catholic mob violence, directed against the Huguenots (French Calvinist Protestants) during the French Wars of Religion. Traditionally believed to have been instigated by Queen Catherine de' Medici, the mother of King Charles IX, the massacre took place a few days after the wedding day (18 August) of the king's sister Margaret to the Protestant Henry III of Navarre (the future Henry IV of France). Many of the most wealthy and prominent Huguenots had gathered in largely Catholic Paris
Paris in the 16th century of buildings, the city expanded outward past the walls. The social geography of the city was much as it was in the Middle Ages. The commercial center was the port on the right bank, at the Place de Greve, where the City Hall is today. The main market was close by, at Les Halles. The University and several large monasteries were on the left bank; in the 16th century booksellers and printers opened near the university. In the first part of the century, when the King was absent, the center of administration was in the old Palais on the Île-de-la-Cité,