Prince William and Princess Kate have reached 1.5million likes on their latest Instagram post, marking Catherine's 43rd birthday on January 9. The Black and White photo of the Princess of Wales is the most liked upload from the royals since Kate's emotional three-minute video where she announced she had completed her preventative chemotherapy

Kate Middleton is officially 43 years old! The Princess of Wales marked her latest birthday on Jan. 9, releasing a stunning portrait of herself beaming on social media. The photo was accompanied by a touching message from her husband,

Kate Middleton, who is celebrating her 43rd birthday on Jan. 9, has proven herself to be the shiniest jewel of the British monarchy. The princess is married to Prince William, heir to the throne.