Peter Canisius joined the Society of Jesus effective on 8 May 1543 as the eighth person and placed his vow in the rectory of St.
The new buttresses have been provided with a relief by the Mainz sculptor Heinz Hemrich carrying symbolic representations of the city's history.
A commemorative plaque in the floor tells the embedded text ″Den Toten zum Gedenken/ Den Lebenden zur Mahnung″ ″In memory of the dead / as a reminder for the Living".
[3] In the eastern chancel, a chapel has been renovated, including a baptistry in the south transept, and a sacristy in the ground floor of the Romanesque tower.
Beginning in 2020, weekly ecumenical prayers for peace in the tradition of the Coventry Cross of Nails are offered in the chapel on Fridays at 5 p.m. Additional worship services are conducted at various times by the Roman Catholic urban ministry Cityseelsorge, as well as the Old Catholic Church and Episcopal Church.