Petersglocke

With a weight of approximately 24,000 kilograms (53,000 lb), a clapper weighing about 700 kilograms (1,500 lb) and a diameter of 322 centimetres (10 ft 7 in), it is the second largest (horizontally mounted) freely swinging ringable bell in the world, after the bell of the People's Salvation Cathedral in Bucharest, Romania.

German: Kaiserglocke) or Gloriosa ("Glorious") of 1873 which at 27,180 kilograms (59,920 lb) was even heavier than the St. Peter's bell.

It was later discovered that the accident happened because the clapper had not been correctly installed in the 1950s, thus increasing wear, which consequently led to material degradation.

[4] In 2016, it was discovered that uneven striking of the clapper meant that the “Dicke Pitter” was no longer emitting its customary sound.

All bells of the cathedral rang on the eve of 28 March 1936, a Friedensappell ("peace appeal") of Hitler, which he made in Cologne due to the Reichstag elections.

[7] Likewise, the St. Petersglocke declared the end of World War II above the ruins of the city of Cologne in 1945, and in 1990 the reunification of Germany.