With the fall of Rouen, only the key city of Orléans remained a threat to Paris and the royal cause. The royal army, outnumbering Condé's, failed to prevent a linkup between his force and German mercenary reinforcements brought across France by François de Coligny d'Andelot but were able to pre-empt his march on Paris leading to him turning North instead, hoping to link up with the English who had the funds he critically needed to pay his troops. As he marched North into Normandy he was intercepted and brought to battle at Dreux a decisive victory for the crown that forced the rebels to retreat into the city of Orléans. Having lost Montmorency as a prisoner and their other leader Jacques d'Albon, Seigneur de Saint André on the field of Dreux, Guise was now left in sole command of the crowns war effort, and despite Catherines desire for a negotiated settlement sought a decisive engagement with a victory at Orléans. Establishing a siege, Guise brought it close to conclusion, before he was assassinated shortly prior to the final assault, allowing Condé, Montmorency and Catherine to establish the compromise Edict of Amboise which brought the first war of religion to a close.