Princess Charlotte Has a Nickname, Too So her dad is "Pops," her uncle is "H," and her mum "will answer to most things." But it turns out cheeky little Princess Charlotte has a nickname too: Lottie! The Duchess of Cambridge was overheard saying, "Oh! He's the same age as Lottie," upon meeting a little boy during the royal tour of northern Ireland. Image Source: Getty / Chris Jackson