Article continues below advertisementPresident Donald Trump and FLOTUS Melania Trump were welcomed at Windsor Castle on Wednesday, September 17, where Prince William and Kate Middleton accompanied them to the royal estate.While the president's state visit was to reestablish a relationship between the United States and the United Kingdom, it was his height that went completely viral during his stay.Article continues below advertisementPrince William Towers Over Donald TrumpSource: megaPrince William reportedly stands at 6-foot-3.