Turnon as a last name has its origins in Turkey, I have found out. 8>)
Surname Savoy is a cultural-historical region in the Western Alps. Situated on the cultural boundary between Franco-Provençal, Occitan and Piedmontese, the area is now divided by the French-Italian border. It extends from Lake Geneva in the north to the Dauphiné in the south. So that means either Swiss of France. Hope that helps. Make of it what you will. 8>)