Faced with the united opposition of the leaders of Paris, Mazarin backed down and accepted many of their proposals, and waited for an opportunity to strike back. The victory of the French army led by Louis de Bourbon, Prince of Condé over the Spanish at the Battle of Lens gave him the opportunity he needed. An arranged a special mass at the Cathedral of Notre Dame, with the presence of the young King, to celebrate the victory, and brought soldiers into the city to line the street for the procession before the ceremony. As soon as the ceremony at Notre-Dame concluded, Mazarin had three prominent members of the Parlement arrested.