Prince George will be christened next Wednesday afternoon in front of close family members and friends of the Duke and Duchess of Cambridge.
William and Kate's baby son will be baptised by the Archbishop of Canterbury in the little known Chapel Royal at St James's Palace, with the ceremony starting at 3pm.
In a statement, Kensington Palace said: "The christening of Prince George will take place on Wednesday October 23 at the Chapel Royal, St James's Palace.
"Prince George will be baptised by the Archbishop of Canterbury, the Most Reverend Justin Welby. The service will start at 3pm and will last approximately 45 minutes."