The cathedral then became the site of much architectural activity, beginning with the addition of Romanesque transepts during the 1150s–1160s to the pre-existing church. In 1152/3, Nidaros Cathedral in Trondheim, Norway, became the center of a vast archiepiscopal authority reaching across the North Sea. 4, Across the Sólundarhaf: Connections between Scotland and the Nordic World: Selected Papers from the Inaugural St Magnus Conference 2011, 77-106. Journal of the North Atlantic, Special Vol.
