Though Henri III had capitulated to the demands of Guise and the League in the Treaty of Nemours, he had no intention of carrying out its provisions, for to do so would have delivered the royal government entirely into Guise’s hands. In typical fashion the king had no sooner agreed to the treaty than he tried to find ways out of it. The royal marshals Biron and Matignon pursued efforts against Navarre in the south and west only half-heartedly, with the result that the anti-Huguenot campaign prescribed by the Treaty of Nemours was left largely to the initiative of League commanders, with minimal support from the king. Thus Mercœur confronted Condé in Brittany and Anjou while Mayenne took on Turenne in Saintonge and Périgord. 1