The Duke and Duchess of Sussex have named their son Archie Harrison Mountbatten-Windsor.
The couple's @SussexRoyal Instagram account announced: "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."
The family of three were pictured in a black and white snap showing off baby Archie to the Queen and Philip, alongside Meghan's mother Doria Ragland.
Harry and Meghan's firstborn, who is seventh in line to the throne, made his world debut with his besotted parents at Windsor Castle on Wednesday.
Proud mother Meghan described him as having the "sweetest temperament", while a delighted Harry called him "our own little bundle of joy".
The Duchess added:
"It's magic, it's pretty amazing. I have the two best guys in the world so I'm really happy."
The Duke and Duchess's son arrived on Monday 6 May at 5.26am, weighing 7lb 3oz.
Congratulations for the Duke and Duchess of Sussex have been pouring in from the military community after the birth of their son on Monday.