@Douglas.
RE: there is a lot about Francois on the world wide web
I guess all of you seen this web page in case you did not here it is.
http://savoiegenealogy.blogspot.com/
i really enjoyed this post and the link. Thank you. It is an amalgamation of many of the similar musings I had through different sources that I pieced together on my own and this post seems to sum it up. He definitely would have been eldest and next in line for accession to any claim to head of household. The idea of banishment and/or exile due to political fallout in France makes a lot of sense. It is too bad that much of this historical interpretation, if true seems to have been whitewashed. "conspiracy theory-LOL" The current House of Savoy sure isn't interested in finding out or verifying the assertions of Francois' noble lineage possibilities. I wonder why?