It was around this time in Norway that they changed the Naming rules for surnames. Until this time the children were sur-named after the father's first name. If you see Andreas father's name was Rasmus Evenson, which meant that Rasmus was the son if Even. There were also many regional differences in the so-called naming patterns. Many also took the names of their professions, farms or area they lived. There is a webpage with more information on this if you are interested http://www.nndata.no/home/jborgos/names.htm Those that are in to geneology will find it interesting. Also remember that Norway was a Monoarchy and remains a constitutional monarchy and they employ a parliamentary system in which the monarch is the ceremonial head of state. As I write this the king is Harald the 5th.