Nidaros
From Wikipedia, the free encyclopedia.
Nidaros is also the name of the Medieval Catholic Metropolitan Archdiocese of Norway, which had suffragans in present-day Norway, Iceland, Greenland, Faroe Islands, Shetland Islands, Scotland and the Isle of Man.
After the Catholic Archdiocese was abolished at the Protestant Reformation in 1537, a Lutheran superintendanture, now diocese, with the name of Nidaros was erected in its place.
The city of Trondhjem actually changed name back to Nidaros on January 1 1930. After a fierce campaign among the citizens against the new name, the Norwegian Parliament changed its name to Trondheim on March 6 1931.