Although she never forgot her first real love, she had to get on with her royal duties.
In 1958 she met a handsome photographer called Anthony Armstrong-Jones.
They married in 1960 at Westminster Abbey and he became the Earl of Snowdon.
They had two children, Viscount Linley and Lady Sarah Armstrong-Jones.
But he didn't like the royal life and they separated in 1976. They divorced two years later which caused quite a scandal in those days.