Although the Huguenots had begun to mobilise for war before Vassy, Condé used the massacre of Vassy as evidence that the July Edict of 1561 had been broken, lending further weight to his campaign. Hoping to turn over the city to Condé, the Huguenots of Toulouse seized the "Hôtel de ville" but were countered by angry Catholic mobs resulting in street battles and the killing of around 3,000—mostly Huguenots—during the 1562 Riots of Toulouse. Additionally, on 12 April 1562, and later in July, there were massacres of Huguenots at Sens and at Tours, respectively. As conflicts continued and open hostilities broke out, the Crown revoked the Edict under pressure from the Guise faction.