The royal couple were left "overwhelmed" by congratulatory messages.
The two-month-old tot has already inspired parents across the globe.
Royal expert Omid Scobie told Yahoo UK's 'The Royal Box' that one of Meghan's close 'non-famous' friends is definitely one of baby Archie's godparents.
Royal commentator Omid Scobie said the Duchess of Sussex will have to heal the rift with her father Thomas Markle before Archie is involved.
Serena Williams could technically still be a godparent to Royal baby Archie even though she wasn't at his christening, says Royal expert Omid Scobie.
The Duchess of Cambridge's headband was a huge hit with royal style fans.
Royal fans couldn't stop looking at the Duke of Cambridge's face.
He has been described as the Duke of Sussex's "wingman."
"He looks like his daddy!'
He attended 10-month-old's private christening ceremony this weekend alongside his wife Meghan, his grandmother the Queen, and his aunt Princess Anne.
Don't they look lovely?
Best uncle ever.
The Duke and Duchess of Cambridge welcomed their second son this morning.
Parents who have asked for handmade gifts for their daughter’s christening are causing quite the stir online. Parents have requested handmade gifts for DD,” she wrote. “Clearly they want lots of unique and personalised gifts for their DD, which is lovely.