The Last Kings of Norse America: Runestone Keys to a Lost Empire. They connect the runestones to a Norse expedition to North America, documented by a 1354 Royal Proclamation. Johnson explains that both the Kensington stone, found in 1898 on a settler's farm near Kensington, Minn., and Spirit Pond runestone, found 73 years later on coastal Maine, were memorials to the men lost during an expedition to North America. The authors say the trip was led by Haakon VI, son of Magnus, King of Sweden and Norway, and the Honorable Paul Knutson, a king's law speaker in Norway, who was in command.

 Red Ice Radio - Robert G. Johnson & Janey Westin - Hour 1 - The Last Kings of Norse America

http://youtu.be/jvVU0iopIlM