 Complete the following phrase:  In 1515, Charles V took an oath in Mons as Count of Hainaut. In this period of its history, the city became the target of various occupations, starting in May 1572 with the Protestant takeover by Louis of Nassau, who had hoped to clear the way for the French Protestant leader Gaspard de Coligny to oppose Spanish rule. After the murder of de Coligny during the 