Britain's Prince William wished his estranged younger brother Harry a happy birthday, as the younger son of King Charles III ...

But a birthday tribute from Prince William to his brother ... "Wishing The Duke of Sussex a very happy 40th birthday today," complete with a birthday cake emoji and a snap of the duke laughing.

Britain's Prince William wished ... Duke of Sussex a very happy 40th birthday today!". That post was accompanied by a photo of a smiling Harry and an emoji of a birthday cake.

While tensions between William and Harry remain ... marked with a birthday cake emoji read: 'Wishing The Duke of Sussex a very happy 40th birthday today!' The post shared a photo of a beaming ...

Prince William wished his estranged brother ... "Wishing The Duke of Sussex a very happy 40th birthday today!" That post was accompanied by a photo of a smiling Harry and an emoji of a birthday cake.

The Prince and Princess of Wales have wished the Duke of Sussex a happy 40th birthday in a message on social media. William and Kate ... and an emoji of a birthday cake. Wishing a Happy 40th ...

William Grant Vandervort turned 100-years-old on Sept. 10, with Wilmington Mayor Patrick Haley on hand to wish the Wilmington ...

Britain's Prince William wished his estranged ... "Wishing The Duke of Sussex a very happy 40th birthday today!". That post was accompanied by a photo of a smiling Harry and an emoji of a birthday ...