Battle of Hastings
Jerseymen who travel abroad spend a not inconsiderable amount of time explaining to foreigners that they come neither from England, nor the United Kingdom or Great Britain, but from the British Isles.
The distinction is usually lost on their audience, but where the English themselves are concerned, Jerseymen are quick to point out to them that, not only are they in no way English, but they helped conquer the English the last time England was invaded.
Just who was and was not at Hastings has been the subject of argument for centuries, but Onfroi, Mauger and Roger de Carteret, the sons of Godefroi de Carteret, are believed to have fought in the battle. It is likely that Onfroi's son Renaud was the first de Carteret to become established in Jersey, and was thus the founder of the dynasty which ruled Jersey for such long periods over the centuries.