Royal experts reveal Prince William's determination to protect Prince George, Princess Charlotte and Prince Louis from the "heir and spare" dynamic that affected his relationship with Harry.

Kate Middleton and Prince William are shielding Princess Charlotte from the potential pitfalls of being the "spare" to her brother Prince George, heir to the throne.

The royal couple is said to be treading carefully with Charlotte’s upbringing in light of the Duke of Sussex’s candid account of life as a “spare.”