Prince Harry has received the Scottish title the Earl of of Dumbarton on his wedding day, Buckingham Palace announced.

He has also been made the Duke of Sussex and his new Northern Irish title is the Baron Kilkeel.

The royal groom was given a dukedom – the highest rank in the British peerage – to mark his marriage to Meghan Markle.

American former actress Meghan will now become Her Royal Highness the Duchess of Sussex on her marriage at the much-anticipated ceremony in St George’s Chapel, Windsor Castle.

She will also become the Countess of Dumbarton and Baroness Kilkeel.

All titles are in the gift of the Queen and it was up to the monarch to choose which one to bestow on her grandson and his new wife.

Dumbarton and Vale of Leven Reporter: The Queen is said to be excited by the prospect of 10,000 guests joining herself, the Duke of Edinburgh, the Duke of Cambridge and Prince Harry in The Mall for a sit-down celebration

Her Majesty The Queen 

Buckingham Palace said: “The Queen has today been pleased to confer a Dukedom on Prince Henry of Wales.

“His titles will be Duke of Sussex, Earl of Dumbarton and Baron Kilkeel. Prince Harry thus becomes His Royal Highness The Duke of Sussex, and Ms Meghan Markle on marriage will become Her Royal Highness The Duchess of Sussex.”

Harry’s thoughts on the title will also have been taken into account by the royal matriarch in a private discussion between the Prince and his grandmother.

Had Harry not wanted to accept a title, Meghan would have become HRH Princess Henry of Wales because she is not a princess in her own right.

The announcement from the palace comes just hours before Harry and his bride wed in Windsor Castle’s St George’s Chapel in front of a congregation of 600 and a television audience of millions.

Dumbarton and Vale of Leven Reporter: The aisle at St George’s Chapel (Steve Parsons/PA)

St George’s Chapel

The Reporter told in January of this year that the odds were 3/1 for Harry to become a Son of the Rock in 2018.

The earldom has been extinct for more than 250 years – but its military links made it an ideal candidate for the Queen’s grandson, who served nine years in the armed forces.

The Dumbarton title was created in 1675 by King Charles II to reward one of his most favoured Scottish military commanders, Major-General George Douglas, for his regiment’s role in recent battles against the Dutch.

Harry is the third Earl of Dumbarton in history.

The first Duke of Sussex was Prince Augustus Frederick, the sixth son of King George III.

He died in 1843, when the title became extinct.

The eccentric royal’s two marriages were deemed illegal and he was known for his fine singing voice.

The title duke comes from the Latin “Dux”, meaning “a leader”.

The Queen is also the Duke of Lancaster, while the Prince of Wales is the Duke of Cornwall.

He is the first Baron Kilkeel.

Kilkeel has never previously been granted as a title.

It is a small town, with a fishing fleet, on the coast of County Down, below the Mourne Mountains.