There was a time when the kings of England ruled a large part of France. Or rather I should say the Angevins of France ruled England as well. Henry II was the founder of the Plantagenet dynasty of English kings. The last of the line was Richard III whose body was dug up in a Leicester car park in 2012. Henry was also the overlord of the Angevin empire — he was lord of more land in France than the King of France himself, Louis VII. His territory stretched all the way from the Scottish border and Ireland to the Pyrenees mountains south of France.
As you can see from the illustration, as well as England and a large chunk of Ireland, the Angevins ruled Normandy, Brittany, Maine, Anjou, Touraine, Aquitaine and Toulouse. It is from Anjou that the Angevins got their name. Henry II was married to Eleanor of Aquitaine, a powerful woman in her own right. They had four sons, Henry, Richard, Geoffrey and John.