This is a strange coincidence if that is what it is. May I ask where you have your soruces from? Do you know anything more about her ancestors ? I could not contact You privately since I do not subscribe for a Pro membership. Here is what I have on her and her ancestors
http://home.broadpark.no/~torgn/650.htm (Use google translator). Anything You have about her including references to sources would be very helpful. If you go to the bottom of the page there will be a link to table of contents. On that page you will find a mailaddress to contact me if you wish.