Mmmmmm...........
They were from Normandy because they were Norse:
"originally from the word for "northman" in several Scandinavian languages"
"Normandy's name comes from the settlement of the territory by Vikings ("Northmen") starting in the 9th century, and confirmed by treaty in the 10th...
Actually it's probably 75% French come to think of it. The Vikings are famous for invading somewhere, winning, then integrating with the locals to the point of assimilating their culture. There are Viking genes all over European coastlands. Slightly odd way to carry on, but is saves on years of...
You do realize that the Normans, were Norse men, not French? There is a clue in there, somewhere.
Oh, and Napoleon was of Italian heritage and was born in Corsica.
Apparently historical references are a challenge for the youngsters on here......and without sufficient contrition to do some research (wikipedia is our friend) they will give you nothing better back than what the Chameleons called 'snorting like horses'. I'll post the track at some point...