The Protestant army laid siege to several cities in the Poitou and Saintonge regions (to protect La Rochelle), and then Angoulême and Cognac. At the Battle of Jarnac (16 March 1569), the Prince de Condé was killed, forcing Admiral de Coligny to take command of the Protestant forces. Coligny and his troops retreated to the south-west and regrouped with Gabriel, comte de Montgomery, and in spring of 1570 they pillaged Toulouse, cut a path through the south of France and went up the Rhone valley to La Charité-sur-Loire. The staggering royal debt and Charles IX's desire to seek a peaceful solution led to the Peace of Saint-Germain-en-Laye (8 August 1570), which once more allowed some concessions to the Huguenots. In 1572, rising tensions between local Catholics and Protestant forces attending the wedding of the Protestant Henry of Navarre, and the King's sister, Marguerite de Valois, culminated in the Saint Bartholomew's Day Massacre. This led to the Fourth and Fifth Civil wars in 1572 and 1573–1576.