Lady Amelia has two older siblings: Edward Windsor, Lord Downpatrick, born in 1988 and Lady Marina Windsor, born in 1992 (pictured).
Edward is the only son and heir apparent of the Earl and Countess of St Andrews.
In 2003, following the example of his grandmother, the Duchess of Kent, and uncle, Lord Nicholas Windsor, he became a member of the Roman Catholic Church and therefore was barred from the line of succession to the British Throne.
Lady Marina was 25th in the line of succession to the British Throne, however, in 2008 The Observer reported that she had been confirmed as a Roman Catholic, and had therefore also forfeited her place in the line of succession.