Meghan Markle and Prince Harry have finally revealed the name of their son - Archie Harrison Mountbatten-Windsor.
The couple's first child, who is happy and healthy, was born at 5.26am on Monday weighing 3.2kg (7lbs 3oz).
In a statement posted on Instagram yesterday afternoon, 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.”
Proud mum Meghan, 37, told earlier how her son "has the sweetest temperament, he's really calm."
Hours before the Duke and Duchess of Sussex revealed their son to the world for the first time.
Afterwards the baby boy, seventh in line to the throne, was introduced to the Queen who will have given consent on the name.
The location of the birth still remains a secret.
Harry said they were looking forward to spending some "precious times with him as he slowly, slowly starts to grow up."
Harry and Meghan shared pictures of their first photocall with their baby son on the @SussexRoyal Instagram account.
"The Duke and Duchess of Sussex are delighted to share their first public moment as a family," the post said.
"They are so incredibly grateful for the warm wishes and support they've received from everyone around the world, since welcoming their son two days ago."
The post included one colour shot of the couple walking into St George's Hall, Windsor Castle, with Harry, carrying his son in his arms, and two black and white images of the family during their appearance, taken by Chris Allerton for @SussexRoyal.