However, her father, King George VI, unexpectedly took the throne in 1936 when his brother abdicated, propelling the six-year-old Margaret into a new title.
Upon her father becoming King, the young Margaret become known as Her Royal Highness The Princess Margaret.
In the Royal Family, most title changes mark a significant change, such as a wedding.
However, Princess Margaret was not granted a new title when she married Antony Armstrong-Jones in 1960.
