Wait, as many places in detail not the least in the north, the foundation of Britain did not start out with the establishement of the Dutchy of Normandy by some viking dude? Got to recheck some history.
I'm afraid not my mercenary chum. Besides, you couldn't REALLY believe that a Frenchman would build something like Stonehenge? Carrying all that stone? Mind you it did take about 800 years to build so that's about average for a French tradesman