Origins of Lund name ??

Hi, my daughter married into the Lund family a couple of years ago. They are from Minnesota around Milwaukee I think. Her mother in law died shortly after the wedding and noone seems to know anything about the Lund name other than they came from Finland or Norway or Sweden-it seems no one ever took the time to find out. We all have been wondering the origins of the Lund name and just general information. Thanks in advance for any info on the Lund name that I can pass on to her-Mari