When Prince William ascends the throne, he will be known as King William IV — but the prince's name as a monarch could have been entirely different if Prince Charles had his way.

William IV, the Sailor King, likened the ride to "being aboard a ship tossing in a rough sea." Camilla 'Never Contemplated Becoming Queen,' Says Biographer: 'It's a Hell of a Challenge at This Age' ...

Prince William will get a brand new title—and potentially a new name—once he's King of Engladn. Here's what we know about Prince William's King title.