The installation of the baroque organ in the basilica probably began around 1600. Balthasar König from Bad Münstereifel, the name giver, completed the organ work with 29 registers in 1727. In 1879 the pedal towers received their own pedal register.
In 1934, the Klais company from Bonn expanded the organ to 46 registers and electrified the action and register action.
In 1977, the organ building company J.Weimbs from Hellenthal was commissioned to restore the organ, which had been shut down due to malfunctions.
Today you can enjoy the world-famous sound of the so-called “König organ” on many occasions.