As of today, Queen Elizabeth II has reigned for 68 years. She has been using the same title for almost seven decades now. But, several reports noted that the Monarch was not always referred to as Queen, especially during her younger years.
When she was born in 1926, she was the third person in line to the British Throne, next to her father, Prince Albert, and his uncle, Prince Edward. But, a decade later, she became the Heir Presumptive because King Edward VIII abdicated after almost a year of his reign.
While being the next person to ascend to the throne, Queen Elizabeth II was referred to as Princess Elizabeth. She did not have any titles yet until she got married in 1947.
According to Express UK, King George VI made Prince Philip the Duke of Edinburgh when he officially became part of the British Royal Family through marriage. This automatically made the then-Princess as the Duchess of Edinburgh because of their union.
However, in 1952, her father died of lung cancer. Upon the King's death, as the Heir Presumptive, Queen Elizabeth II became the head of the British Monarchy. Her official title became "Elizabeth the Second, by the Grace of God, of the United Kingdom of Great Britain and Northern Ireland and of Her other Realms and Territories Queen, Head of the Commonwealth, and Defender of the Faith."
Since then, she held the title and the style of "Majesty." But, as for her title as the Duchess of Edinburgh, she reportedly had to give it up. So, as of today, no one holds the said title until the title of Prince Philip is passed onto their youngest son, Prince Edward.
As per Cheat Sheet, the Earl of Wessex is the only son of the Queen and Prince Consort who has no dukedom. Nevertheless, he received the earldom of Wessex after his official union with his wife, the now-Countess of Wessex, Sophie, in 1999.
The publication shared that when Prince Philip passes away, the Earl and Countess of Wessex will become the next Duke and Duchess of Edinburgh. As for his and Queen Elizabeth II's other sons, they will remain the Dukes of Cornwall and York.
This will only be changed when the Queen passes away and Prince Charles will become the King of the United Kingdom. The titles of Prince of Wales and Duke of Cornwall will become Prince William's as he will then become the Heir Apparent. These titles will reportedly "merge" with his title as the Duke of Cambridge.
