The St. Bartholomew's Day massacre, which began two days later, has stained Catherine's reputation ever since. There is reason to believe she was party to the decision when on 23 August Charles IX is said to have ordered, "Then kill them all! Kill them all!" Historians have suggested that Catherine and her advisers expected a Huguenot uprising to avenge the attack on Coligny. They chose therefore to strike first and wipe out the Huguenot leaders while they were still in Paris after the wedding.