Prince Harry and Meghan Markle will be known as the Duke and Duchess of Sussex

Kensington Palace announced the new title just hours before the pair tie the knot at St George's Chapel in Windsor Castle, Windsor.

The palace said in a statement: "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."

Meanwhile, Prince Charles will walk Meghan down the aisle after her father, Thomas Markle, withdrew from attending the ceremony after undergoing heart surgery.

Kensington Palace previously confirmed: "Ms. Meghan Markle has asked His Royal Highness the Prince of Wales to accompany her down the aisle of the Quire of St George's Chapel on her Wedding Day. The Prince of Wales is pleased to be able to welcome Ms. Markle to The Royal Family in this way."

Meghan will follow in her soon-to-be sister-in-law Duchess Catherine's footsteps by choosing to remove the word "obey" from her marriage vows.

Harry's mother Princess Diana also omitted "obey" from her vows to Harry's father Prince Charles in 1981.

Harry and Meghan will pledge themselves to one another "for better, for worse, for richer, for poorer, in sickness and in health, to love and to cherish, till death us do part".

Music will include pieces by Johann Sebastian Bach, Edward Elgar, Gabriel Faure and Franz Schubert, a gospel choir will also perform and the song 'Stand By Me' has been included.

In keeping with royal wedding tradition, the National Anthem will be played at the end.