Queen, Kate Middleton and William wish Meghan Markle a happy 40th birthday with sweet pictures of duchess Ben Hill Updated: 11:44, 4 Aug 2021 THE Queen, Kate Middleton and Prince William have all wished Meghan Markle a happy 40th birthday. The Duchess of Sussex is believed to be marking the milestone day in the US - although how she is celebrating has been kept under wraps. 8 8 One of the pictures shows the Queen and Meghan in Chester in 2018 And the Royals flocked to social media to send their best wishes to Meghan for her big day - despite speculation of a rift between the Sussexes and the Firm.