[1] A small church located at a burial ground north of the Roman city Colonia Claudia Ara Agrippinensium was founded or renewed by Cunibert, ninth Bishop of Cologne.
The western spire collapsed during a storm in 1830 for static reasons, as this tower was not part of the original plan and the structure of the building was not designed for it.
The roof was destroyed by fire, the western tower was hit by a bomb, collapsed, causing significant damage to the large parts of the westwork.
The reconstruction of choir and nave was finished in 1955; however, the rebuilding of the transept and western tower did not begin until the late 1970s.
The original shrines of Cunibert and The Ewalds were destroyed during secularization and only the wooden cores with the relics remained.