Britain's head of state King Charles III turns 76 on Thursday, still in the grip of cancer treatment but with his passion for work undimmed by what his son and heir Prince William called a "brutal" ...

King Charles was wished a happy birthday by a historian when he was still Prince of Wales, but his unusual reply raised ...

As monarch, King Charles III has two birthdays – just like his late mother, Queen Elizabeth II, did. While a second birthday ...