sentences:  The first was the 3.8-tonne "Dreikönigsglocke" ("Bell of the Three Kings"), cast in 1418, installed in 1437, and recast in 1880.Two of the other bells, the "Pretiosa" (10.5 tonnes; at that time the largest bell in the Western world) and the "Speciosa" (5.6 tonnes) were installed in 1448 and remain in place today.During the 19th century, as the building neared completion, there was a desire to extend the number of bells.