The British monarch turns 76 today, November 14, and to mark the occasion, his royal family sent him well wishes via social media.

Kate Middleton and Prince William are celebrating King Charles' birthday! See the tribute as the King turns 76 on Nov. 14

Prince William and Princess Kate have publicly wished King Charles a happy 76th birthday by sharing a message on their social media channels. They wrote: "Wishing a very Happy Birthday to His Majesty The King!" A hilarious picture of the King, wearing his cool sunglasses and a colourful garland on his recent trip to Samoa, accompanied the message.