Catherine, Princess of Wales, turned 43 on Thursday, with her husband Prince William praising her "strength" fighting cancer during the past year.

Prince William has sent a message to Kate Middleton as she celebrates her 43rd birthday. A post from the official Twitter account for The Prince and Princess of Wales shows a rare new snap of the Princess.

Princess Catherine turns 43 after a challenging year fighting cancer. She took time off for treatment and focused on her health. Plans are in place for her and William to make more public appearances.

The Princess of Wales is celebrating at home in Windsor with the Prince of Wales, with Prince George, Princess Charlotte and Prince Louis spending the day at school before a family celebration in the evening.

The Prince of Wales posted a birthday message for his wife, Catherine, Princess of Wales to social media on Thursday to celebrate her 43rd birthday.

The Prince of Wales issued a heartfelt written message on social media to mark the Princess of Wales’s birthday after a turbulent year. Kate is celebrating her 43rd birthday at home in Windsor with her family,

William praised Kate for her "remarkable" strength in the post released on Thursday, Jan. 9 Prince William is celebrating his love and admiration for Kate Middleton as she marks her 43rd birthday. In a message posted to the couple's social media,

Prince William has issued an emotional birthday message to the Princess of Wales and shared a new photo of his wife. Princess Kate is celebrating her 43rd birthday today and her first since completing preventative chemotherapy treatment.

Kate Middleton is celebrating her 43rd birthday today, with the royal family sharing a loving tribute on social media to mark the Princess of Wales' special day