Queen, Kate Middleton and William wish Meghan Markle a very happy birthday By Thursday Aug 05, 2021 Senior royal members, including the Queen, Prince William, Kate Middleton and others have sent their best wishes to the Duchess of Sussex on her 40th birthday. The official Twitter account of the Duke and Duchess of Cambridge posted a message, writing “Wishing a happy 40th birthday to The Duchess of Sussex!” alongside a picture of Meghan and a birthday cake emoji. The Queen’s official account posted three pictures to mark the occasion, including a photo of Meghan, the Duke of Sussex and their son Archie on their 2019 royal tour to South Africa.