The royal title was previously conferred to Charles who later became King
King Charles III is honoring his late parents' wishes.
The 73-year-old monarch has conferred the title of Duke of Edinburgh on his younger brother, Prince Edward to mark his 59th birthday.
Edward was previously known as the Earl of Wessex, a title which will now be descended to his son, Viscount Severn.
“His Majesty the King has been pleased to confer the Dukedom of Edinburgh upon the Prince Edward, Earl of Wessex and Forfar, on the occasion of His Royal Highness’s 59th birthday,” an official statement from Buckingham Palace read. “The title will be held by Prince Edward for His Royal Highness’s lifetime.”
The late Queen Elizabeth II had promised Edward the title over 20 years ago on the occasion of his marriage to Sophie Rhys-Jones.
The title was previously held by the late monarch’s husband, Prince Phillip, which went to their eldest son Charles and later returned to the crown when Charles became King.
“The Dukedom was last created for Prince Philip in 1947, upon his marriage to Princess Elizabeth, who held the title of Duchess of Edinburgh before acceding to the throne in 1952,” the palace continued.
“The new Duke and Duchess of Edinburgh are proud to continue Prince Philip’s legacy of promoting opportunities for young people of all backgrounds to reach their full potential,” they added.