The Duke and Duchess of Sussex have revealed the name of their son.

In a statement posted on Instagram, the couple said: "The Duke and Duchess of Sussex are pleased to announce they have named their first born child:

Archie Harrison Mountbatten-Windsor.

"This afternoon Their Royal Highnesses introduced Her Majesty The Queen to her eighth great-grandchild at Windsor Castle. The Duke of Edinburgh and The Duchess' mother were also present for this special occasion."

Earlier today baby Archie was introduced to the public for the first time as he attended a photocall in St George's Hall at Windsor Castle.