Television viewers watched in confusion as Louis disappeared from sight, leaving his sister Princess Charlotte alone.
However, the five-year-old was simply “retired” during the service, which was deliberate, it was later shared with the public.
The view was that the two-hour Coronation service was very long for a five-year-old to endure.
Former Norland nanny Sarah Carpenter has said that when it comes to Prince Louis, Kate is the “perfect” parent.