Britain's Kate, the Duchess of Cambridge visits the Urban Nature Project at the Natural History Museum, in London, June 22, 2021. The Duchess of Cambridge, who turns 40 on Sunday Jan. 9, 2022, has emerged as Britain’s reliable royal. After Prince Harry and Meghan’s stormy departure to California in 2020, the death of Prince Philip last year, and now sex abuse allegations against Prince Andrew, the former Kate Middleton remains in the public eye as the smiling mother of three who can comfort grieving parents at a children's hospice or wow the nation by playing piano during a televised Christmas concert. (Geoff Pugh/Pool Photo via AP, File)