LONDON: Clarence House confirmed on Thursday that Britain's new monarch will be known as King Charles III, following the death of Queen Elizabeth, PA Media reported on Thursday.

READ: Britain's Queen Elizabeth dies peacefully at Scottish home aged 96

READ: Statement from Charles, Britain's new king

Queen Elizabeth, Britain's longest-reigning monarch and the nation's figurehead for seven decades, has died aged 96, Buckingham Palace said on Thursday.

Elizabeth's eldest son Charles, 73, automatically becomes king of the United Kingdom and the head of state of 14 other realms including Australia, Canada and New Zealand. His wife Camilla becomes Queen Consort.

READ: Queen Elizabeth was the rock on which modern Britain was built, says PM Truss