I would think so. Fabius has already elaborated on way this could occur but I would also like to say something rather similar nearly occured in history. The First Mexican Empire attempted to find a European monarch to rule over them and after no one stood up they simply choose a Native Mexican instead. So perhaps one way is have a country declare independence and become a Monarchy instead of a Republic and then have a European monarch rise to the throne. Sadly, as happend in history there wasnt much incentive for European Monarchs to rule over land overseas, and any attempt for one to do so would draw the ire of the country from which the nation declared independence from. But for England specifically, perhaps yes. If the United States declared independence earlier, the ideas of the enlightenment may not have desiminated in America as thorougly and perhaps the Americans would have gone with Monarchy. Perhaps. Another, perhaps more radical and unlikely possibility is have Europeans loose contact with a sizable colony in the Americas in the medieval era, somewhat similar to the Viking colonies in Greenland. The Normans loved to sail around, so perhaps a storm would set them to a new land. It would have to be well established enough to retain it's population, infrastructure and culture which is ofcourse unlikely. You'd also need the incentive to colonize in the first place-- perhaps another plague, fertile land or riches. Then after recontact during the proper colonial era it would have to be advanced enough to stem the tide of the New Colonialism. Is this scenario likely? No. But is it possible? Probaly.