Adorable new video reveals what little Prince George REALLY calls the Queen.<br><br>Footage of the christening shows William and George discussing Granny<br>The Princes nickname was revealed by the Duchess of Cambridge in a recently shared clip from ITVs upcoming documentary, Our Queen at 90. calls the .<br>The Duchess of Cambridge has revealed the adorable name her son Prince George has for his great-grandmother. While most of us know her as Queen .
