Prince Louis turned eight in the UK on Tuesday, 23 April 2026, and royal watchers say the young prince has just reached the age when he is expected to break a century‑old royal rule about boys' clothing, making Prince Louis the latest Windsor child to swap traditional shorts for 'grown‑up' trousers.
The news came after Kensington Palace released a new official portrait to mark Prince Louis' eighth birthday, a custom for senior royal children. The youngest child of Prince William and Kate Middleton, now Princess of Wales, is fourth in line to the throne and three years younger than Princess Charlotte, who turns 11 next month, and five years younger than Prince George. The photograph, taken outdoors, shows Louis in a navy knitted quarter‑zip jumper with orange cuffs, a white collar and a matching zip, his arms folded and a gap‑toothed smile catching the wind in his hair.
