Prince Charles becomes oldest heir for nearly 300 years
The Prince of Wales will become the oldest heir to the throne for almost 300 years on Friday.
Prince Charles will pass the current record of William IV, who became king in June 1830 aged 64 years, 10 months and five days.
Prince Charles is already the longest serving heir to the throne, becoming heir apparent when his mother became Queen in 1952.
The prince was just three years old when his grandfather George VI died.
The previous oldest heir to the throne was Sophia of Hanover who died aged 83 in 1714, a few months before Queen Anne died.
A bill which ended succession to the Crown based on gender became law earlier this year.
Under the previous law, dating back to 1701, women were superseded by their brothers in succession even if they were the first born.
That change happened ahead of the birth of Prince Charles' first grandchild, Prince George.
The son of the Duke and Duchess of Cambridge became the third in line to the throne when he was born in July.