Kate Middleton treats Prince William "like a fourth child" due to his temper tantrums, a source who worked with them in Kensington Palace has claimed.
Author Tom Quinn shared his conversations with the source who revealed what goes on behind the scenes in the Prince and Princess of Wales' marriage, the Mirror reports.
The source allegedly told Quinn: "Kate treats him [William] like the fourth child because he's prone to tantrums". However, the insider added that Kate has an effective strategy put in place to ensure their arguments don't get out of hand.