King Christoffer III af Bavaria (1416-1448). He was son of Johann I of Pfalz-Neumarkt-Neunburg and Catharina (Sister of Danish King Erik VII) and hence grandson of Nordic Queen Margrete I.
He was king of Denmark 1440-1448 king of Sweden 1441-1448 king of Norway 1442-1448
-- Anonymous User 10/15/2007
Christoffer is not only frequently used as a name in Scandinavia, but also in Germany and the Netherlands.
http://www.nordicnames.de/Aussprache.html.