Around half an hour after the visit from the Queen, William, Kate and their baby were seen being driven away from Kensington Palace.
The Duchess was sitting in the back of the vehicle next to the baby seat while the Duke was a front-seat passenger.
More top news
Parents of obese children rarely spot that their child is overweight, doctors warn.
MPs are no longer MPs, just candidates again - Parliament has automatically dissolved and the 'short campaign' begins today.
John Barnes would like to work again as a football manager, but is being hindered due to the colour of his skin.