The royal couple gave fans their first full glimpse of their son as they took him for tea with the Archbishop and his daughter, Thandeka Tutu-Gxashe in September.
The couple also delighted fans last month by sharing a sweet clip to their @SussexRoyal Instagram account of Archie giving Desmond Tutu a high five during their royal tour.
In the footage, a smiling Archie is introduced to Archbishop Desmond Tutu, who asks the little tot for a "high five".
Proud mum Meghan gives Archie a helping hand, and holds his tiny hand up to the Archbishop's.
"Thanks Cape Town for another impactful and memorable day A few more highlights of this very special visit with Archbishop Desmond Tutu." said the accompanying caption.