They have been the subject of many wonderful family photographs over the years but until last week, we had never really heard them speak.
However, all that changed when Prince George, Princess Charlotte and Prince Louis lent their voices to highlight Sir David Attenborough’s plea to protect the natural world.
In the garden at Kensington Palace, the Duke and Duchess of Cambridge filmed the youngsters each asking a question of the veteran naturalist, who recorded his own answers in turn.
It was the first time we have heard Louis, now two and a half, speak in public, and the most we have ever heard from George, seven, or Charlotte, five. Looking confident in a red and navy Thomas’s Battersea rugby shirt, George went first, saying: “Hello, David Attenborough. What animal…