A group of 40 armed men is said to have ascended to the minster from the crowded market place at approximately 1 pm on 9 February 1529. After a first attack on the church, during which an altarpiece was tipped over and smashed, they departed for reinforcements. The chaplains took the opportunity to lock the gates of the minster. The returning mob of 200 loud and rowdy men assaulted and finally smashed through the barrier. Once inside the church they destroyed altars, crucifixes, and images of the Virgin Mary and saints. In the course of the afternoon the iconoclasm extended to other churches in Basel as well.