UNITED KINGDOM (AFP) -- Britain's new king will be formally known as Charles III, his Clarence House residence confirmed Thursday, after suggestions that queen Elizabeth II's heir might have taken a different regnal name.

Charles's eldest son William inherits the duchy of Cornwall in addition to his current title of duke of Cambridge.
Prime Minister Liz Truss on Thursday hailed Britain's new monarch King Charles III, and said Britons "must come together as a people to support him", shortly after the queen's death was announced.
"Today the crown passes as it has done for more than 1,000 years to our new monarch, our new head of state, His Majesty King Charles III," she said, adding: "We must come together as a people to support him, to help him bear the awesome responsibility that he now carries for us all."