Dragon Quest V may have been first released in 1992, but even then, through the powers of the Super Famicom and Yuji Hori, it knew that the brother of the future King of England could be a bit of a handful.
And before you go thinking that was just slid in there for the 2009 Western release of the game, the original character's name was ヘンリー, or Henry. The real Harry's full name? Henry Charles Albert David. The fact he is also a smartass at a young age isn't coincidence. It's prophecy, OK?