Answer:
Catherine de Medici promulgated an edict granting limited toleration to the Huguenots. However, the edict was received by immediate resistance and led to the Massacre of Vassy, which became the inciting event in the first French War of Religion.
Explanation:
In January 1562, Catherine de Medici promulgated the Edict of St Germain granting the right to worship of the Huguenots. Soon after, to show his opposition to the Edict, Francis, Duke of Guise, and his troops attacked a group of Huguenots that were worshipping in a barn in the town of Vassy and assassinated over 80 of them. This event would become the sparking event of the First War of Religion.
