kate shared the anecdote during a party to celebrate the 105th birthday of the goring hotel in london , the luxury hotel she stayed in the night before her wedding to william in 2011 .
at the party in march , where kate , 33 , wowed in a floral erdem dress and navy alexander mcqueen court shoes .
the duchess of cambridge has revealed that prince george went looking for his father in the cupboards after being told he was ` in china ' gordon .