[5] Mársey ‘Morsø’: Located in Limfjorden in Jutland. According to Óláfs saga Tryggvasonar (ÓTHkr ch. 27, ÍF 26, 259-60), Morsø was the place where Emperor Otto II and the Danish king Haraldr Gormsson concluded a truce after Otto’s attack on the Danevirke, and where Haraldr subsequently converted to Christianity.