King Charles and Prince William could visit the U.S. next year to mark the 250th anniversary of the Declaration of Independence and boost relations with Donald Trump, who has frequently spoken of his admiration and respect for the British monarchy.

With an entire family in the spotlight, the royals are bound to have tumult. Just look at this timeline of Prince William and King Charles' rocky relationship.

Prince William has made it clear he wants to be a modern king when it comes time, but his approach to the role has not always been so clear.