I read an Article some years ago that the Son of Louise escaped to america and went to Boston where he taught French in School. He later moved to Montreal where hsi decendents still live and work as Regular people today. I am searching for this Link. I too have many FAMOUS people inlcuding Royal lines. Your Name is SPENCER so you must know someplace there is a common Ancestor to Lady Dianna Spencer. I too have this in my tree. My line is connected to Joseph Morgan and Dorothy Parkes her AMerican Ancestors.
We all have them its a matter of research.
SEE how this works on this site. (your related)
http://www.isn.net/susankin/026.html