For a finishing touch, Ellena popped in a personalised topper she'd bought from eBay. "Here it is - her fifth birthday cake from Tesco with a personalised touch," she said. "And I'm actually ...

The Duchess of Sussex, 43, marked Lilibet's fourth birthday online with a series of Instagram posts last week, including documenting the Sussexes's family holiday to Disneyland for the occasion.