One notable guest at the christening was the Duke of Cambridge's former nanny Jessie Webb, who left the chapel in conversation with Prince George's grandfather Michael Middleton.
Ms Webb has been helping the Cambridges with childcare duties and attended the christening in her role as nanny.
The Duke and Duchess of Cambridge have released four official photographs from Prince George’s christening
Prince George was christened today in a small, private service at the Chapel Royal at St James's Palace.
Royal christening celebrations are steeped in tradition and history, and Prince George's, though intimate, will be no different.