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>It could be Francois Savoie. He was The son of Prince Tomaso Francesco Savoy of Turin Italy. His mother was French. Marie de Soissons de Bourbon. 1606-1692. Francois was born abt1621. He fled to Acadia Canada, after a feud over who would be the next Duke of Savoy, his father or his young cousins. The cousins won, their mother was a Hapsburg.

Prince Tommaso Francesco of Savoy, Prince of Carignan (1596-1656) married Marie de Bourbon, Mademoiselle de Soissons (1606-1692) in 1625. They had eight children, born between 1626 and ca 1634, none of whom were named "Francois".

I checked *Les Manuscrits du C.E.D.R.E. - Le royaume d'Italie* (3 volumes, 1992-1994), where it is mentioned that Prince Tommaso, and his elder brother, Prince Maurizio of Savoy (1593-1657), rebelled against their sister-in-law Christine after the death of her husband who was their brother, Vittorio Amedeo I, Duke of Savoy, in 1637. By the way, Christine was not a Hapsburg. She was the daughter of Henri IV, King of France, and sister of Louis XIII, King of France.

Princes Tommaso and Maurizio sought to be regents (not dukes) of Savoy in the place of their sister-in-law. This family rebellion led to a civil war in Turin(*), lasting from May 1639 to November 1640. In the end, the brothers accepted that their sister-in-law be the regent of the duchy of Savoy for her under-age sons Francesco Giacinto, Duke of Savoy, followed by Carlo Emanuele II, Duke of Savoy. (Christine's sons hadn't yet reached their majority, and so were required to rule under a regent.)

(*) Turin was the capital of Piedmont, a region ruled by the House of Savoy. At this time in history, Turin was not part of Italy, however, because the Italy we know today did not exist then as a political entity.

Finally, C.E.D.R.E. doesn't mention a son, legitimate or illegitimate, for Prince Tommaso called "Francois".