What's sure is that all corsican have "corsican sound names".
Like " Paoli, Bartoli ,Natalini ,Rossi , Orsini..."
And JACOTEY is not one of them...
look at this adresse :
http://www.geopatronyme.com/cgi-bin/...4390&periode=2
There is no Jacotey in Corsica before 1945.