The construction of Roskilde Cathedral began in 1170 and was completed 110 years later. However, the final appearance of the church was not formed at this time, as its interior and exterior were repeatedly changed. Roskilde Cathedral is famous not only for its architecture, but also for the fact that it served as a burial place for many Danish kings. The last royal couple buried here were King Frederick IX (1947) and his wife Ingrid of Sweden (1972).