There might be a rift between Prince William and Prince Harry, but it seems both of the royals are serious about protecting their families from the media. Prince William and Kate Middleton aren't suing a tabloid, but they did confront a BBC radio host who talked about Princess Charlotte on his show.
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The reason Kate Middleton and Prince William confronted a BBC radio host - ZarasLounge

The reason Kate Middleton and Prince William confronted a BBC radio host - ZarasLounge